Finding the Fourth Proportional to 21,373.52, 29,505.83 and 15,013.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,373.52 : 29,505.83 = 15,013.62 : x
2. Step 2: Convert to fraction form
   21,373.52/29,505.83 = 15,013.62/x
3. Step 3: Cross multiply
   21,373.52x = 29,505.83 × 15,013.62
4. Step 4: Simplify right side
   21,373.52x = 442,989,244.34
5. Step 5: Solve for x
   x = 442,989,244.34/21,373.52
6. Step 6: Final answer
   x = 20,726.08