Finding the Fourth Proportional to 16,596.72, 22,903.56 and 9,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,596.72 : 22,903.56 = 9,144.72 : x
2. Step 2: Convert to fraction form
   16,596.72/22,903.56 = 9,144.72/x
3. Step 3: Cross multiply
   16,596.72x = 22,903.56 × 9,144.72
4. Step 4: Simplify right side
   16,596.72x = 209,446,643.20
5. Step 5: Solve for x
   x = 209,446,643.20/16,596.72
6. Step 6: Final answer
   x = 12,619.76