Finding the Fourth Proportional to 57,123.75, 78,830.72 and 31,973.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.75 : 78,830.72 = 31,973.25 : x
2. Step 2: Convert to fraction form
   57,123.75/78,830.72 = 31,973.25/x
3. Step 3: Cross multiply
   57,123.75x = 78,830.72 × 31,973.25
4. Step 4: Simplify right side
   57,123.75x = 2,520,474,355.45
5. Step 5: Solve for x
   x = 2,520,474,355.45/57,123.75
6. Step 6: Final answer
   x = 44,123.05