Finding the Fourth Proportional to 72,500.76, 108,752.37 and 19,909.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,500.76 : 108,752.37 = 19,909.89 : x
2. Step 2: Convert to fraction form
   72,500.76/108,752.37 = 19,909.89/x
3. Step 3: Cross multiply
   72,500.76x = 108,752.37 × 19,909.89
4. Step 4: Simplify right side
   72,500.76x = 2,165,247,723.94
5. Step 5: Solve for x
   x = 2,165,247,723.94/72,500.76
6. Step 6: Final answer
   x = 29,865.17