Finding the Fourth Proportional to 23,471.64, 32,389.92 and 12,861.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,471.64 : 32,389.92 = 12,861.04 : x
2. Step 2: Convert to fraction form
   23,471.64/32,389.92 = 12,861.04/x
3. Step 3: Cross multiply
   23,471.64x = 32,389.92 × 12,861.04
4. Step 4: Simplify right side
   23,471.64x = 416,568,056.72
5. Step 5: Solve for x
   x = 416,568,056.72/23,471.64
6. Step 6: Final answer
   x = 17,747.72