Finding the Fourth Proportional to 16,123.16, 22,249.96 and 9,049.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,123.16 : 22,249.96 = 9,049.57 : x
2. Step 2: Convert to fraction form
   16,123.16/22,249.96 = 9,049.57/x
3. Step 3: Cross multiply
   16,123.16x = 22,249.96 × 9,049.57
4. Step 4: Simplify right side
   16,123.16x = 201,352,492.27
5. Step 5: Solve for x
   x = 201,352,492.27/16,123.16
6. Step 6: Final answer
   x = 12,488.40