Finding the Fourth Proportional to 23,479.59, 32,402.27 and 12,869.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,479.59 : 32,402.27 = 12,869.15 : x
2. Step 2: Convert to fraction form
   23,479.59/32,402.27 = 12,869.15/x
3. Step 3: Cross multiply
   23,479.59x = 32,402.27 × 12,869.15
4. Step 4: Simplify right side
   23,479.59x = 416,989,446.61
5. Step 5: Solve for x
   x = 416,989,446.61/23,479.59
6. Step 6: Final answer
   x = 17,759.66