Finding the Fourth Proportional to 57,014.38, 78,673.03 and 31,517.31

Step by Step Solution

1. Step 1: Write the proportion equation
   57,014.38 : 78,673.03 = 31,517.31 : x
2. Step 2: Convert to fraction form
   57,014.38/78,673.03 = 31,517.31/x
3. Step 3: Cross multiply
   57,014.38x = 78,673.03 × 31,517.31
4. Step 4: Simplify right side
   57,014.38x = 2,479,562,275.15
5. Step 5: Solve for x
   x = 2,479,562,275.15/57,014.38
6. Step 6: Final answer
   x = 43,490.12