Finding the Fourth Proportional to 16,739.26, 23,099.99 and 9,665.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,739.26 : 23,099.99 = 9,665.53 : x
2. Step 2: Convert to fraction form
   16,739.26/23,099.99 = 9,665.53/x
3. Step 3: Cross multiply
   16,739.26x = 23,099.99 × 9,665.53
4. Step 4: Simplify right side
   16,739.26x = 223,273,540.27
5. Step 5: Solve for x
   x = 223,273,540.27/16,739.26
6. Step 6: Final answer
   x = 13,338.32