If you change your calculation to the following, you should be able to achieve what you want to see:
ISNULL([Closed Date]) AND ISNULL([Denied Date]) AND ISNULL([Cancelled Date])
This will create a boolean field in your dimensions list. From there, you can simply add this to your filters shelf to find the Loans that are still classified as active. I suspect you may be able to achieve similar results using your Current Status All field as a filter but as I do not know how variable these values are, I stuck with editing your calculation.
Hope this helps,