Finding the Fourth Proportional to 71,140.34, 98,168.82 and 39,308.96

Step by Step Solution

1. Step 1: Write the proportion equation
   71,140.34 : 98,168.82 = 39,308.96 : x
2. Step 2: Convert to fraction form
   71,140.34/98,168.82 = 39,308.96/x
3. Step 3: Cross multiply
   71,140.34x = 98,168.82 × 39,308.96
4. Step 4: Simplify right side
   71,140.34x = 3,858,914,218.63
5. Step 5: Solve for x
   x = 3,858,914,218.63/71,140.34
6. Step 6: Final answer
   x = 54,243.69