You will want to reconcile the AP General Ledger Account (from GL Trial Balance); to the AP Trial Balance Report.  That is the one that is run by "transaction date" and will match to your General Ledger.  An Aging Report is based on invoice data instead, and not a good source report for reconciling the general ledger to a subsidiary module like Accounts Payable. 

There will be nothing in Accounts Payable, on the AP Trial Balance that is not posted to the General Ledger. 

To see the Purchases Clearing Dollars (Goods received, pending Invoice ); then from the Purchase Order Module, run the Purchases Clearing Report.  That should reconcile to your PO Clearing GL Account,.