Finding the Fourth Proportional to 16,103.86, 22,229.37 and 9,391.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,103.86 : 22,229.37 = 9,391.59 : x
2. Step 2: Convert to fraction form
   16,103.86/22,229.37 = 9,391.59/x
3. Step 3: Cross multiply
   16,103.86x = 22,229.37 × 9,391.59
4. Step 4: Simplify right side
   16,103.86x = 208,769,129.00
5. Step 5: Solve for x
   x = 208,769,129.00/16,103.86
6. Step 6: Final answer
   x = 12,963.92