Finding the Fourth Proportional to 56,644.15, 78,167.37 and 31,150.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,644.15 : 78,167.37 = 31,150.52 : x
2. Step 2: Convert to fraction form
   56,644.15/78,167.37 = 31,150.52/x
3. Step 3: Cross multiply
   56,644.15x = 78,167.37 × 31,150.52
4. Step 4: Simplify right side
   56,644.15x = 2,434,953,773.29
5. Step 5: Solve for x
   x = 2,434,953,773.29/56,644.15
6. Step 6: Final answer
   x = 42,986.85