Finding the Fourth Proportional to 11,131.92, 16,685.54 and 7,429.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.92 : 16,685.54 = 7,429.04 : x
2. Step 2: Convert to fraction form
   11,131.92/16,685.54 = 7,429.04/x
3. Step 3: Cross multiply
   11,131.92x = 16,685.54 × 7,429.04
4. Step 4: Simplify right side
   11,131.92x = 123,957,544.08
5. Step 5: Solve for x
   x = 123,957,544.08/11,131.92
6. Step 6: Final answer
   x = 11,135.32