Finding the Fourth Proportional to 71,704.24, 98,943.83 and 39,871.24

Step by Step Solution

1. Step 1: Write the proportion equation
   71,704.24 : 98,943.83 = 39,871.24 : x
2. Step 2: Convert to fraction form
   71,704.24/98,943.83 = 39,871.24/x
3. Step 3: Cross multiply
   71,704.24x = 98,943.83 × 39,871.24
4. Step 4: Simplify right side
   71,704.24x = 3,945,012,895.25
5. Step 5: Solve for x
   x = 3,945,012,895.25/71,704.24
6. Step 6: Final answer
   x = 55,017.85