Multiple Tabs, Totals of each elements

Hi All,


I need help figuring out how to do the following:

In the file attached, there are 4 tabs corresponding to data for each month, and a tab for Year-to-date results. I want to figure out the most efficient way to have year-to-date totals of each category, however, the categories are not all the same in each tabs, some are there four months in a row, some only one month. Is there any function that can look for the category names through the first 4 tabs and if it finds it, make the sum of amounts in the four next columns?


Thank you for your help with this, and sorry my english is a little bit rusty.


Joshua