Answer :
Recall that the a% of b can be computed using the following expression:
[tex]b\cdot\frac{a}{100}\text{.}[/tex]Ler x be the amount (in dollars) that Kena lists her house, since the commission for the buyer's realtor is 4%, then she will receive the 96% of x.
Now, since Kena wants to receive a minimum of $231,700, then we can set the following equation:
[tex]x\cdot\frac{96}{100}=231700.[/tex]Multiplying the above equation by 100/96 we get:
[tex]\begin{gathered} x\cdot\frac{96}{100}\cdot\frac{100}{96}=231700\cdot\frac{100}{96}, \\ x\approx241354.17. \end{gathered}[/tex]Answer: $241,354.17.