Finding the Fourth Proportional to 71,924.01, 99,251.50 and 40,086.76

Step by Step Solution

1. Step 1: Write the proportion equation
   71,924.01 : 99,251.50 = 40,086.76 : x
2. Step 2: Convert to fraction form
   71,924.01/99,251.50 = 40,086.76/x
3. Step 3: Cross multiply
   71,924.01x = 99,251.50 × 40,086.76
4. Step 4: Simplify right side
   71,924.01x = 3,978,670,463.67
5. Step 5: Solve for x
   x = 3,978,670,463.67/71,924.01
6. Step 6: Final answer
   x = 55,317.70