Finding the Fourth Proportional to 71,942.76, 99,283.86 and 40,117.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,942.76 : 99,283.86 = 40,117.32 : x
2. Step 2: Convert to fraction form
   71,942.76/99,283.86 = 40,117.32/x
3. Step 3: Cross multiply
   71,942.76x = 99,283.86 × 40,117.32
4. Step 4: Simplify right side
   71,942.76x = 3,983,002,382.46
5. Step 5: Solve for x
   x = 3,983,002,382.46/71,942.76
6. Step 6: Final answer
   x = 55,363.49