\[ \frac{110.16}{24.6 + x} = 1.8 \]
\[ 24.6 + x = \frac{110.16}{1.8} \]
\[ 24.6 + x = 61.2 \]
\[ x = 61.2 - 24.6 \]
\[ x = 36.6 \]
Ответ: 36.6