When $Mr.$ Barnes passed away,$\frac{2}{3}of$ his estate was left $to$ his wife,$\frac{1}{4}$ was shared $by$ his children, and the remainder, $$75287,$ was donated $to$ a charity. How big was $Mr.$ Barnes$s$ estate? Write the answer $as$ just a number with two decimals, such $as34500\mathrm{.}45.$