Finding the Fourth Proportional to 16,789.07, 23,169.49 and 9,235.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.07 : 23,169.49 = 9,235.69 : x
2. Step 2: Convert to fraction form
   16,789.07/23,169.49 = 9,235.69/x
3. Step 3: Cross multiply
   16,789.07x = 23,169.49 × 9,235.69
4. Step 4: Simplify right side
   16,789.07x = 213,986,146.09
5. Step 5: Solve for x
   x = 213,986,146.09/16,789.07
6. Step 6: Final answer
   x = 12,745.56