Finding the Fourth Proportional to 21,425.32, 32,015.15 and 16,331.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,425.32 : 32,015.15 = 16,331.32 : x
2. Step 2: Convert to fraction form
   21,425.32/32,015.15 = 16,331.32/x
3. Step 3: Cross multiply
   21,425.32x = 32,015.15 × 16,331.32
4. Step 4: Simplify right side
   21,425.32x = 522,849,659.50
5. Step 5: Solve for x
   x = 522,849,659.50/21,425.32
6. Step 6: Final answer
   x = 24,403.35