Finding the Fourth Proportional to 16,286.74, 22,481.49 and 9,910.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,286.74 : 22,481.49 = 9,910.42 : x
2. Step 2: Convert to fraction form
   16,286.74/22,481.49 = 9,910.42/x
3. Step 3: Cross multiply
   16,286.74x = 22,481.49 × 9,910.42
4. Step 4: Simplify right side
   16,286.74x = 222,801,008.13
5. Step 5: Solve for x
   x = 222,801,008.13/16,286.74
6. Step 6: Final answer
   x = 13,679.90