Finding the Fourth Proportional to 57,142.76, 78,860.26 and 31,992.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,142.76 : 78,860.26 = 31,992.04 : x
2. Step 2: Convert to fraction form
   57,142.76/78,860.26 = 31,992.04/x
3. Step 3: Cross multiply
   57,142.76x = 78,860.26 × 31,992.04
4. Step 4: Simplify right side
   57,142.76x = 2,522,900,592.33
5. Step 5: Solve for x
   x = 2,522,900,592.33/57,142.76
6. Step 6: Final answer
   x = 44,150.84