Finding the Fourth Proportional to 57,879.50, 86,761.71 and 32,867.78

Step by Step Solution

1. Step 1: Write the proportion equation
   57,879.50 : 86,761.71 = 32,867.78 : x
2. Step 2: Convert to fraction form
   57,879.50/86,761.71 = 32,867.78/x
3. Step 3: Cross multiply
   57,879.50x = 86,761.71 × 32,867.78
4. Step 4: Simplify right side
   57,879.50x = 2,851,664,362.90
5. Step 5: Solve for x
   x = 2,851,664,362.90/57,879.50
6. Step 6: Final answer
   x = 49,268.99