Finding the Fourth Proportional to 16,297.16, 22,480.58 and 9,222.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,297.16 : 22,480.58 = 9,222.20 : x
2. Step 2: Convert to fraction form
   16,297.16/22,480.58 = 9,222.20/x
3. Step 3: Cross multiply
   16,297.16x = 22,480.58 × 9,222.20
4. Step 4: Simplify right side
   16,297.16x = 207,320,404.88
5. Step 5: Solve for x
   x = 207,320,404.88/16,297.16
6. Step 6: Final answer
   x = 12,721.26