Finding the Fourth Proportional to 57,123.61, 78,830.56 and 31,973.11

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.61 : 78,830.56 = 31,973.11 : x
2. Step 2: Convert to fraction form
   57,123.61/78,830.56 = 31,973.11/x
3. Step 3: Cross multiply
   57,123.61x = 78,830.56 × 31,973.11
4. Step 4: Simplify right side
   57,123.61x = 2,520,458,166.24
5. Step 5: Solve for x
   x = 2,520,458,166.24/57,123.61
6. Step 6: Final answer
   x = 44,122.88