You own $2$ investments, A and B$,$ which have a combined total value of $$31,016.$ Investment A is expected to pay $$33,500$ in $6$ years and has an expected return of $17\mathrm{.}60$ percent per year. Investment B is expected to pay $$54,600$ in $10$ years and has an expected return of X percent per year. What is X$?$

Input instructions: Enter the number, rounded to $2$ decimal places, that comes before the percent sign. For example, if the answer is $12\mathrm{.}34$ percent, enter $12\mathrm{.}34.$ Do not enter $0\mathrm{.}1234$ or $12\mathrm{.}34\%.$