Finding the Fourth Proportional to 71,411.31, 98,544.06 and 39,579.93

Step by Step Solution

1. Step 1: Write the proportion equation
   71,411.31 : 98,544.06 = 39,579.93 : x
2. Step 2: Convert to fraction form
   71,411.31/98,544.06 = 39,579.93/x
3. Step 3: Cross multiply
   71,411.31x = 98,544.06 × 39,579.93
4. Step 4: Simplify right side
   71,411.31x = 3,900,366,996.72
5. Step 5: Solve for x
   x = 3,900,366,996.72/71,411.31
6. Step 6: Final answer
   x = 54,618.34