Finding the Fourth Proportional to 23,517.12, 32,454 and 12,906.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,517.12 : 32,454 = 12,906.72 : x
2. Step 2: Convert to fraction form
   23,517.12/32,454 = 12,906.72/x
3. Step 3: Cross multiply
   23,517.12x = 32,454 × 12,906.72
4. Step 4: Simplify right side
   23,517.12x = 418,874,690.88
5. Step 5: Solve for x
   x = 418,874,690.88/23,517.12
6. Step 6: Final answer
   x = 17,811.48