Finding the Fourth Proportional to 16,272.35, 22,455.72 and 9,198.77

Step by Step Solution

1. Step 1: Write the proportion equation
   16,272.35 : 22,455.72 = 9,198.77 : x
2. Step 2: Convert to fraction form
   16,272.35/22,455.72 = 9,198.77/x
3. Step 3: Cross multiply
   16,272.35x = 22,455.72 × 9,198.77
4. Step 4: Simplify right side
   16,272.35x = 206,565,003.46
5. Step 5: Solve for x
   x = 206,565,003.46/16,272.35
6. Step 6: Final answer
   x = 12,694.23