Finding the Fourth Proportional to 23,841.56, 32,899.82 and 13,231.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,841.56 : 32,899.82 = 13,231.20 : x
2. Step 2: Convert to fraction form
   23,841.56/32,899.82 = 13,231.20/x
3. Step 3: Cross multiply
   23,841.56x = 32,899.82 × 13,231.20
4. Step 4: Simplify right side
   23,841.56x = 435,304,098.38
5. Step 5: Solve for x
   x = 435,304,098.38/23,841.56
6. Step 6: Final answer
   x = 18,258.21