Finding the Fourth Proportional to 16,285.06, 22,469.32 and 9,480.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,285.06 : 22,469.32 = 9,480.20 : x
2. Step 2: Convert to fraction form
   16,285.06/22,469.32 = 9,480.20/x
3. Step 3: Cross multiply
   16,285.06x = 22,469.32 × 9,480.20
4. Step 4: Simplify right side
   16,285.06x = 213,013,647.46
5. Step 5: Solve for x
   x = 213,013,647.46/16,285.06
6. Step 6: Final answer
   x = 13,080.31