Finding the Fourth Proportional to 72,086.16, 99,472.98 and 41,861.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,086.16 : 99,472.98 = 41,861.88 : x
2. Step 2: Convert to fraction form
   72,086.16/99,472.98 = 41,861.88/x
3. Step 3: Cross multiply
   72,086.16x = 99,472.98 × 41,861.88
4. Step 4: Simplify right side
   72,086.16x = 4,164,125,952.00
5. Step 5: Solve for x
   x = 4,164,125,952.00/72,086.16
6. Step 6: Final answer
   x = 57,765.96