Finding the Fourth Proportional to 22,642.72, 31,248.52 and 13,084.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,642.72 : 31,248.52 = 13,084.32 : x
2. Step 2: Convert to fraction form
   22,642.72/31,248.52 = 13,084.32/x
3. Step 3: Cross multiply
   22,642.72x = 31,248.52 × 13,084.32
4. Step 4: Simplify right side
   22,642.72x = 408,865,635.21
5. Step 5: Solve for x
   x = 408,865,635.21/22,642.72
6. Step 6: Final answer
   x = 18,057.27