Finding the Fourth Proportional to 71,429.86, 98,504.82 and 42,744.64

Step by Step Solution

1. Step 1: Write the proportion equation
   71,429.86 : 98,504.82 = 42,744.64 : x
2. Step 2: Convert to fraction form
   71,429.86/98,504.82 = 42,744.64/x
3. Step 3: Cross multiply
   71,429.86x = 98,504.82 × 42,744.64
4. Step 4: Simplify right side
   71,429.86x = 4,210,553,069.16
5. Step 5: Solve for x
   x = 4,210,553,069.16/71,429.86
6. Step 6: Final answer
   x = 58,946.68