Finding the Fourth Proportional to 57,156.88, 78,874.71 and 31,662.22

Step by Step Solution

1. Step 1: Write the proportion equation
   57,156.88 : 78,874.71 = 31,662.22 : x
2. Step 2: Convert to fraction form
   57,156.88/78,874.71 = 31,662.22/x
3. Step 3: Cross multiply
   57,156.88x = 78,874.71 × 31,662.22
4. Step 4: Simplify right side
   57,156.88x = 2,497,348,420.46
5. Step 5: Solve for x
   x = 2,497,348,420.46/57,156.88
6. Step 6: Final answer
   x = 43,692.88