$$-4x^3+248x^2-4723x+26853 = 0$$
Answer
$$ \begin{matrix}x_1 = 10.46793 & x_2 = 21.01496 & x_3 = 30.5171 \end{matrix} $$
Explanation
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using qubic formulas.
This page was created using
Polynomial Equations Solver