For amount for prospects only I would do the following - Import both the tables and associate client code column from both the tables either by a direct join during load or by drag-n-drop in the model viewer. then make a pivot table using client code as rows and state as columns with amount as measure. When I do that, I see no value for the Prospect category. I checked the raw data back into the Excel (Not to doubt Qlik but myself) and there is no amount information available for those client codes as well as any quarters other than Q4. You probably want to bring in more complete data and if this is all your data, then there is no amount for Prospect category and no data for any month other than October (4th quarter)
If you do the data import using the data manager, it would create multiple timeline dimensions including quarter based on the date value in your data. This you can use in a set analysis expression like this -
Note that the chart on right remains is forced fixed to Q4 as an example.
Hope this helps,