Finding the Fourth Proportional to 71,710.86, 98,963.38 and 39,446.84

Step by Step Solution

1. Step 1: Write the proportion equation
   71,710.86 : 98,963.38 = 39,446.84 : x
2. Step 2: Convert to fraction form
   71,710.86/98,963.38 = 39,446.84/x
3. Step 3: Cross multiply
   71,710.86x = 98,963.38 × 39,446.84
4. Step 4: Simplify right side
   71,710.86x = 3,903,792,616.72
5. Step 5: Solve for x
   x = 3,903,792,616.72/71,710.86
6. Step 6: Final answer
   x = 54,437.96