Finding the Fourth Proportional to 16,506.72, 22,777.92 and 9,054.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,506.72 : 22,777.92 = 9,054.72 : x
2. Step 2: Convert to fraction form
   16,506.72/22,777.92 = 9,054.72/x
3. Step 3: Cross multiply
   16,506.72x = 22,777.92 × 9,054.72
4. Step 4: Simplify right side
   16,506.72x = 206,247,687.78
5. Step 5: Solve for x
   x = 206,247,687.78/16,506.72
6. Step 6: Final answer
   x = 12,494.77