Finding the Fourth Proportional to 23,489.60, 32,417.69 and 12,881.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,489.60 : 32,417.69 = 12,881.30 : x
2. Step 2: Convert to fraction form
   23,489.60/32,417.69 = 12,881.30/x
3. Step 3: Cross multiply
   23,489.60x = 32,417.69 × 12,881.30
4. Step 4: Simplify right side
   23,489.60x = 417,581,763.70
5. Step 5: Solve for x
   x = 417,581,763.70/23,489.60
6. Step 6: Final answer
   x = 17,777.31