Finding the Fourth Proportional to 16,116.40, 24,142.20 and 10,867.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,116.40 : 24,142.20 = 10,867.60 : x
2. Step 2: Convert to fraction form
   16,116.40/24,142.20 = 10,867.60/x
3. Step 3: Cross multiply
   16,116.40x = 24,142.20 × 10,867.60
4. Step 4: Simplify right side
   16,116.40x = 262,367,772.72
5. Step 5: Solve for x
   x = 262,367,772.72/16,116.40
6. Step 6: Final answer
   x = 16,279.55