Finding the Fourth Proportional to 23,479.47, 32,401.60 and 12,724.64

Step by Step Solution

1. Step 1: Write the proportion equation
   23,479.47 : 32,401.60 = 12,724.64 : x
2. Step 2: Convert to fraction form
   23,479.47/32,401.60 = 12,724.64/x
3. Step 3: Cross multiply
   23,479.47x = 32,401.60 × 12,724.64
4. Step 4: Simplify right side
   23,479.47x = 412,298,670.83
5. Step 5: Solve for x
   x = 412,298,670.83/23,479.47
6. Step 6: Final answer
   x = 17,559.96