Finding the Fourth Proportional to 16,280.06, 22,462.43 and 9,475.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,280.06 : 22,462.43 = 9,475.20 : x
2. Step 2: Convert to fraction form
   16,280.06/22,462.43 = 9,475.20/x
3. Step 3: Cross multiply
   16,280.06x = 22,462.43 × 9,475.20
4. Step 4: Simplify right side
   16,280.06x = 212,836,016.74
5. Step 5: Solve for x
   x = 212,836,016.74/16,280.06
6. Step 6: Final answer
   x = 13,073.42