Finding the Fourth Proportional to 42,086.67, 58,085.15 and 29,331.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086.67 : 58,085.15 = 29,331.60 : x
2. Step 2: Convert to fraction form
   42,086.67/58,085.15 = 29,331.60/x
3. Step 3: Cross multiply
   42,086.67x = 58,085.15 × 29,331.60
4. Step 4: Simplify right side
   42,086.67x = 1,703,730,385.74
5. Step 5: Solve for x
   x = 1,703,730,385.74/42,086.67
6. Step 6: Final answer
   x = 40,481.47