Finding the Fourth Proportional to 16,789.36, 23,168.82 and 9,235.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.36 : 23,168.82 = 9,235.68 : x
2. Step 2: Convert to fraction form
   16,789.36/23,168.82 = 9,235.68/x
3. Step 3: Cross multiply
   16,789.36x = 23,168.82 × 9,235.68
4. Step 4: Simplify right side
   16,789.36x = 213,979,807.50
5. Step 5: Solve for x
   x = 213,979,807.50/16,789.36
6. Step 6: Final answer
   x = 12,744.97