Finding the Fourth Proportional to 71,469.45, 98,620.83 and 39,637.71

Step by Step Solution

1. Step 1: Write the proportion equation
   71,469.45 : 98,620.83 = 39,637.71 : x
2. Step 2: Convert to fraction form
   71,469.45/98,620.83 = 39,637.71/x
3. Step 3: Cross multiply
   71,469.45x = 98,620.83 × 39,637.71
4. Step 4: Simplify right side
   71,469.45x = 3,909,103,859.50
5. Step 5: Solve for x
   x = 3,909,103,859.50/71,469.45
6. Step 6: Final answer
   x = 54,696.15