Finding the Fourth Proportional to 23,431.52, 32,335.49 and 12,821.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,431.52 : 32,335.49 = 12,821.15 : x
2. Step 2: Convert to fraction form
   23,431.52/32,335.49 = 12,821.15/x
3. Step 3: Cross multiply
   23,431.52x = 32,335.49 × 12,821.15
4. Step 4: Simplify right side
   23,431.52x = 414,578,167.61
5. Step 5: Solve for x
   x = 414,578,167.61/23,431.52
6. Step 6: Final answer
   x = 17,693.18