Finding the Fourth Proportional to 16,287.74, 22,482.88 and 9,911.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,287.74 : 22,482.88 = 9,911.42 : x
2. Step 2: Convert to fraction form
   16,287.74/22,482.88 = 9,911.42/x
3. Step 3: Cross multiply
   16,287.74x = 22,482.88 × 9,911.42
4. Step 4: Simplify right side
   16,287.74x = 222,837,266.49
5. Step 5: Solve for x
   x = 222,837,266.49/16,287.74
6. Step 6: Final answer
   x = 13,681.29