Finding the Fourth Proportional to 12,200.02, 16,843.28 and 7,727.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.02 : 16,843.28 = 7,727.60 : x
2. Step 2: Convert to fraction form
   12,200.02/16,843.28 = 7,727.60/x
3. Step 3: Cross multiply
   12,200.02x = 16,843.28 × 7,727.60
4. Step 4: Simplify right side
   12,200.02x = 130,158,134.00
5. Step 5: Solve for x
   x = 130,158,134.00/12,200.02
6. Step 6: Final answer
   x = 10,668.68