Finding the Fourth Proportional to 16,790.05, 23,169.35 and 9,235.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,790.05 : 23,169.35 = 9,235.16 : x
2. Step 2: Convert to fraction form
   16,790.05/23,169.35 = 9,235.16/x
3. Step 3: Cross multiply
   16,790.05x = 23,169.35 × 9,235.16
4. Step 4: Simplify right side
   16,790.05x = 213,972,561.59
5. Step 5: Solve for x
   x = 213,972,561.59/16,790.05
6. Step 6: Final answer
   x = 12,744.01