Finding the Fourth Proportional to 16,439.16, 24,683.34 and 13,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,439.16 : 24,683.34 = 13,142.52 : x
2. Step 2: Convert to fraction form
   16,439.16/24,683.34 = 13,142.52/x
3. Step 3: Cross multiply
   16,439.16x = 24,683.34 × 13,142.52
4. Step 4: Simplify right side
   16,439.16x = 324,401,289.62
5. Step 5: Solve for x
   x = 324,401,289.62/16,439.16
6. Step 6: Final answer
   x = 19,733.45