Sheridan Service has a line of credit loan with the bank. The initial loan balance was $$$$7000\mathrm{.}00.$ Payments of $$$$2500\mathrm{.}00$ and $$$$3000\mathrm{.}00$ were made after three months and six months respectively. At the end of one$$ year, Sheridan Service borrowed an additional $$$$4500\mathrm{.}00.$ Eight months$$ later, the line of credit loan was converted into a collateral mortgage loan. What was the amount of the mortgage loan if the line of credit interest was $6\%$ compounded monthly?