Finding the Fourth Proportional to 57,932.86, 86,932.17 and 31,278.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,932.86 : 86,932.17 = 31,278.50 : x
2. Step 2: Convert to fraction form
   57,932.86/86,932.17 = 31,278.50/x
3. Step 3: Cross multiply
   57,932.86x = 86,932.17 × 31,278.50
4. Step 4: Simplify right side
   57,932.86x = 2,719,107,327.39
5. Step 5: Solve for x
   x = 2,719,107,327.39/57,932.86
6. Step 6: Final answer
   x = 46,935.49