Finding the Fourth Proportional to 16,222.79, 22,388.77 and 9,150.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.79 : 22,388.77 = 9,150.68 : x
2. Step 2: Convert to fraction form
   16,222.79/22,388.77 = 9,150.68/x
3. Step 3: Cross multiply
   16,222.79x = 22,388.77 × 9,150.68
4. Step 4: Simplify right side
   16,222.79x = 204,872,537.27
5. Step 5: Solve for x
   x = 204,872,537.27/16,222.79
6. Step 6: Final answer
   x = 12,628.69