Finding the Fourth Proportional to 16,788.96, 23,169.35 and 9,235.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,788.96 : 23,169.35 = 9,235.86 : x
2. Step 2: Convert to fraction form
   16,788.96/23,169.35 = 9,235.86/x
3. Step 3: Cross multiply
   16,788.96x = 23,169.35 × 9,235.86
4. Step 4: Simplify right side
   16,788.96x = 213,988,872.89
5. Step 5: Solve for x
   x = 213,988,872.89/16,788.96
6. Step 6: Final answer
   x = 12,745.81