Finding the Fourth Proportional to 85,608.31, 118,139.88 and 47,882.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,608.31 : 118,139.88 = 47,882.56 : x
2. Step 2: Convert to fraction form
   85,608.31/118,139.88 = 47,882.56/x
3. Step 3: Cross multiply
   85,608.31x = 118,139.88 × 47,882.56
4. Step 4: Simplify right side
   85,608.31x = 5,656,839,892.49
5. Step 5: Solve for x
   x = 5,656,839,892.49/85,608.31
6. Step 6: Final answer
   x = 66,078.16