Finding the Fourth Proportional to 11.31, 15.56 and 10.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11.31 : 15.56 = 10.41 : x
2. Step 2: Convert to fraction form
   11.31/15.56 = 10.41/x
3. Step 3: Cross multiply
   11.31x = 15.56 × 10.41
4. Step 4: Simplify right side
   11.31x = 161.93
5. Step 5: Solve for x
   x = 161.93/11.31
6. Step 6: Final answer
   x = 14.32