Finding the Fourth Proportional to 57,010.88, 78,673.24 and 31,515.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,010.88 : 78,673.24 = 31,515.72 : x
2. Step 2: Convert to fraction form
   57,010.88/78,673.24 = 31,515.72/x
3. Step 3: Cross multiply
   57,010.88x = 78,673.24 × 31,515.72
4. Step 4: Simplify right side
   57,010.88x = 2,479,443,803.33
5. Step 5: Solve for x
   x = 2,479,443,803.33/57,010.88
6. Step 6: Final answer
   x = 43,490.71