Finding the Fourth Proportional to 72,088.72, 108,124.47 and 19,502.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,088.72 : 108,124.47 = 19,502.30 : x
2. Step 2: Convert to fraction form
   72,088.72/108,124.47 = 19,502.30/x
3. Step 3: Cross multiply
   72,088.72x = 108,124.47 × 19,502.30
4. Step 4: Simplify right side
   72,088.72x = 2,108,676,121.59
5. Step 5: Solve for x
   x = 2,108,676,121.59/72,088.72
6. Step 6: Final answer
   x = 29,251.13