Finding the Fourth Proportional to 71,966.24, 99,276.24 and 42,880.16

Step by Step Solution

1. Step 1: Write the proportion equation
   71,966.24 : 99,276.24 = 42,880.16 : x
2. Step 2: Convert to fraction form
   71,966.24/99,276.24 = 42,880.16/x
3. Step 3: Cross multiply
   71,966.24x = 99,276.24 × 42,880.16
4. Step 4: Simplify right side
   71,966.24x = 4,256,981,055.40
5. Step 5: Solve for x
   x = 4,256,981,055.40/71,966.24
6. Step 6: Final answer
   x = 59,152.47