Finding the Fourth Proportional to 23,291.18, 32,142.41 and 12,681.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,291.18 : 32,142.41 = 12,681.40 : x
2. Step 2: Convert to fraction form
   23,291.18/32,142.41 = 12,681.40/x
3. Step 3: Cross multiply
   23,291.18x = 32,142.41 × 12,681.40
4. Step 4: Simplify right side
   23,291.18x = 407,610,758.17
5. Step 5: Solve for x
   x = 407,610,758.17/23,291.18
6. Step 6: Final answer
   x = 17,500.65