Finding the Fourth Proportional to 107,086.67, 160,588.48 and 57,139.52

Step by Step Solution

1. Step 1: Write the proportion equation
   107,086.67 : 160,588.48 = 57,139.52 : x
2. Step 2: Convert to fraction form
   107,086.67/160,588.48 = 57,139.52/x
3. Step 3: Cross multiply
   107,086.67x = 160,588.48 × 57,139.52
4. Step 4: Simplify right side
   107,086.67x = 9,175,948,664.73
5. Step 5: Solve for x
   x = 9,175,948,664.73/107,086.67
6. Step 6: Final answer
   x = 85,687.12