Finding the Fourth Proportional to 16,222.37, 22,386.56 and 9,148.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.37 : 22,386.56 = 9,148.79 : x
2. Step 2: Convert to fraction form
   16,222.37/22,386.56 = 9,148.79/x
3. Step 3: Cross multiply
   16,222.37x = 22,386.56 × 9,148.79
4. Step 4: Simplify right side
   16,222.37x = 204,809,778.59
5. Step 5: Solve for x
   x = 204,809,778.59/16,222.37
6. Step 6: Final answer
   x = 12,625.15