A contract requires payments of $$$$5636\mathrm{.}00$today$,$$$2171\mathrm{.}00$ in $3$years$,$ and $ $3334\mathrm{.}00$ in $4$ years. When can the contract be fulfilled by a single payment equal to the sum of the required payments if money is worth $9\%$ p$.$a$.$ compounded semi dash annually question mark State your answer in years and months$($from $0$ to $11$ months$).$