Finding the Fourth Proportional to 16,399.83, 22,605.57 and 11,085.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,399.83 : 22,605.57 = 11,085.42 : x
2. Step 2: Convert to fraction form
   16,399.83/22,605.57 = 11,085.42/x
3. Step 3: Cross multiply
   16,399.83x = 22,605.57 × 11,085.42
4. Step 4: Simplify right side
   16,399.83x = 250,592,237.79
5. Step 5: Solve for x
   x = 250,592,237.79/16,399.83
6. Step 6: Final answer
   x = 15,280.17