Given: The Monroes have a $30$ Year fixed Mortgage at $5\mathrm{.}25\%.$ As of December $31,2021$ the balance on their mortgage was $$139,937\mathrm{.}00.$ They paid $$10,267$ per year toward their mortgage in principal and interest, $$2,657$ in property taxes, and $$1,739$ and homeowners insurance. Question: $4.$ Assuming the Monroes have always made their mortgage payments exactly as agreed, how much was their original mortgage?