Finding the Fourth Proportional to 16,608.56, 22,919.72 and 9,156.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,608.56 : 22,919.72 = 9,156.56 : x
2. Step 2: Convert to fraction form
   16,608.56/22,919.72 = 9,156.56/x
3. Step 3: Cross multiply
   16,608.56x = 22,919.72 × 9,156.56
4. Step 4: Simplify right side
   16,608.56x = 209,865,791.36
5. Step 5: Solve for x
   x = 209,865,791.36/16,608.56
6. Step 6: Final answer
   x = 12,636.00