Finding the Fourth Proportional to 32,016.87, 48,025.71 and 8,643.78

Step by Step Solution

1. Step 1: Write the proportion equation
   32,016.87 : 48,025.71 = 8,643.78 : x
2. Step 2: Convert to fraction form
   32,016.87/48,025.71 = 8,643.78/x
3. Step 3: Cross multiply
   32,016.87x = 48,025.71 × 8,643.78
4. Step 4: Simplify right side
   32,016.87x = 415,123,671.58
5. Step 5: Solve for x
   x = 415,123,671.58/32,016.87
6. Step 6: Final answer
   x = 12,965.78