Finding the Fourth Proportional to 16,142.80, 22,277.28 and 9,068.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,142.80 : 22,277.28 = 9,068.80 : x
2. Step 2: Convert to fraction form
   16,142.80/22,277.28 = 9,068.80/x
3. Step 3: Cross multiply
   16,142.80x = 22,277.28 × 9,068.80
4. Step 4: Simplify right side
   16,142.80x = 202,028,196.86
5. Step 5: Solve for x
   x = 202,028,196.86/16,142.80
6. Step 6: Final answer
   x = 12,515.07