Finding the Fourth Proportional to 16,120.23, 22,245.54 and 8,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,120.23 : 22,245.54 = 8,949.72 : x
2. Step 2: Convert to fraction form
   16,120.23/22,245.54 = 8,949.72/x
3. Step 3: Cross multiply
   16,120.23x = 22,245.54 × 8,949.72
4. Step 4: Simplify right side
   16,120.23x = 199,091,354.25
5. Step 5: Solve for x
   x = 199,091,354.25/16,120.23
6. Step 6: Final answer
   x = 12,350.40