Finding the Fourth Proportional to 16,662.74, 22,995.20 and 9,109.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.74 : 22,995.20 = 9,109.58 : x
2. Step 2: Convert to fraction form
   16,662.74/22,995.20 = 9,109.58/x
3. Step 3: Cross multiply
   16,662.74x = 22,995.20 × 9,109.58
4. Step 4: Simplify right side
   16,662.74x = 209,476,614.02
5. Step 5: Solve for x
   x = 209,476,614.02/16,662.74
6. Step 6: Final answer
   x = 12,571.56