Finding the Fourth Proportional to 16,461.26, 22,716.72 and 9,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,461.26 : 22,716.72 = 9,388.10 : x
2. Step 2: Convert to fraction form
   16,461.26/22,716.72 = 9,388.10/x
3. Step 3: Cross multiply
   16,461.26x = 22,716.72 × 9,388.10
4. Step 4: Simplify right side
   16,461.26x = 213,266,839.03
5. Step 5: Solve for x
   x = 213,266,839.03/16,461.26
6. Step 6: Final answer
   x = 12,955.68