QUESTION $12$

$"$ Investment $x$ yields a payment of $$900$ at the end of year $1,$ a payment of $$5500$ at the end of year $2,$ a payment of $$8000$ at the end of year $3,$ and a payment of $$10000$ at the end of year $4.$ Investment $Y$ yields a payment of $$10000$ at the end of year $1,$ a payment of $$8000$ at the end of year $2,$ a payment of $$5500$ at the end of year $3,$ and a payment of $$900$ at the end of year $4.$ What is the present walue of Investment X if the interest rate is $12\%?$ Note: Express your answers in strictly numerical terms. For example, if the answer is $$500,$ write enter $500$ as an answer."