Finding the Fourth Proportional to 57,150.56, 78,868.01 and 31,656.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,150.56 : 78,868.01 = 31,656.38 : x
2. Step 2: Convert to fraction form
   57,150.56/78,868.01 = 31,656.38/x
3. Step 3: Cross multiply
   57,150.56x = 78,868.01 × 31,656.38
4. Step 4: Simplify right side
   57,150.56x = 2,496,675,379.20
5. Step 5: Solve for x
   x = 2,496,675,379.20/57,150.56
6. Step 6: Final answer
   x = 43,685.93