To solve for \( x \) in the equation
\[ 102.5(x - 11.92) = 71.6, \]
we will first isolate \( x \).
- Divide both sides by 102.5:
\[ x - 11.92 = \frac{71.6}{102.5}. \]
- Calculate \( \frac{71.6}{102.5} \):
\[ \frac{71.6}{102.5} \approx 0.698. \]
- Now we have:
\[ x - 11.92 \approx 0.698. \]
- Next, add \( 11.92 \) to both sides:
\[ x \approx 0.698 + 11.92. \]
- Calculate \( 0.698 + 11.92 \):
\[ x \approx 12.618. \]
Rounding \( x \) to 3 decimal places, we get:
\[ \boxed{12.618}. \]