Finding the Fourth Proportional to 16,661.74, 22,993.81 and 9,108.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,661.74 : 22,993.81 = 9,108.58 : x
2. Step 2: Convert to fraction form
   16,661.74/22,993.81 = 9,108.58/x
3. Step 3: Cross multiply
   16,661.74x = 22,993.81 × 9,108.58
4. Step 4: Simplify right side
   16,661.74x = 209,440,957.89
5. Step 5: Solve for x
   x = 209,440,957.89/16,661.74
6. Step 6: Final answer
   x = 12,570.17