Replace Column References with Next Column

One spreadsheet in my workbook holds all financial statements, printable. The formulas pull from the other spreadsheets which are updated monthly by pasting data into the next column.

I need the cells referenced in some formulas to move one column right each month.
For example:

In spreadsheet "Reporting Package"

Cash ='Trial Balance'!AJ491
A/R ='Trial Balance'!AJ493

Contributions ='Trial Balance'!AJ270-'Trial Balance'!V270

I need all these formulas to move from referencing column AJ to AK, (but to not change column V in the contributions formula). Next month, I'll need to move from AK to AL, still not changing column V.

Thus far, I've been running a "find and replace" and writing:
Find: 'Trial Balance'!AJ
Replace: 'Trial Balance'!AK
This works fine, but there are many of these to do. Find: Budget'!BC, Revenue'!AJ, Trial Balance'!AI, and so on.

Is there an easier way? I find it difficult to see how a macro could handle this without needing to be re-written each month. In that case, I may as well do it as I currently do.

Any input is greatly appreciated.