Finding the Fourth Proportional to 72,571.73, 108,864.50 and 28,201.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,571.73 : 108,864.50 = 28,201.92 : x
2. Step 2: Convert to fraction form
   72,571.73/108,864.50 = 28,201.92/x
3. Step 3: Cross multiply
   72,571.73x = 108,864.50 × 28,201.92
4. Step 4: Simplify right side
   72,571.73x = 3,070,187,778.83
5. Step 5: Solve for x
   x = 3,070,187,778.83/72,571.73
6. Step 6: Final answer
   x = 42,305.56