To solve for \( x \) in the equation \( x + 4.1 = 18.2 \), you can subtract 4.1 from both sides:
\[ x + 4.1 - 4.1 = 18.2 - 4.1 \]
This simplifies to:
\[ x = 18.2 - 4.1 \]
Now, perform the subtraction:
\[ x = 14.1 \]
Therefore, the value of \( x \) is \( \boxed{14.1} \).