Finding the Fourth Proportional to 23,479.94, 32,403.12 and 12,869.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,479.94 : 32,403.12 = 12,869.57 : x
2. Step 2: Convert to fraction form
   23,479.94/32,403.12 = 12,869.57/x
3. Step 3: Cross multiply
   23,479.94x = 32,403.12 × 12,869.57
4. Step 4: Simplify right side
   23,479.94x = 417,014,059.04
5. Step 5: Solve for x
   x = 417,014,059.04/23,479.94
6. Step 6: Final answer
   x = 17,760.44