Finding the Fourth Proportional to 71,447.42, 98,597.27 and 39,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,447.42 : 98,597.27 = 39,615.50 : x
2. Step 2: Convert to fraction form
   71,447.42/98,597.27 = 39,615.50/x
3. Step 3: Cross multiply
   71,447.42x = 98,597.27 × 39,615.50
4. Step 4: Simplify right side
   71,447.42x = 3,905,980,149.69
5. Step 5: Solve for x
   x = 3,905,980,149.69/71,447.42
6. Step 6: Final answer
   x = 54,669.30