Finding the Fourth Proportional to 57,123.16, 78,830.01 and 31,972.66

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.16 : 78,830.01 = 31,972.66 : x
2. Step 2: Convert to fraction form
   57,123.16/78,830.01 = 31,972.66/x
3. Step 3: Cross multiply
   57,123.16x = 78,830.01 × 31,972.66
4. Step 4: Simplify right side
   57,123.16x = 2,520,404,910.45
5. Step 5: Solve for x
   x = 2,520,404,910.45/57,123.16
6. Step 6: Final answer
   x = 44,122.30