Finding the Fourth Proportional to 12,196.73, 16,831.27 and 6,891.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.73 : 16,831.27 = 6,891.43 : x
2. Step 2: Convert to fraction form
   12,196.73/16,831.27 = 6,891.43/x
3. Step 3: Cross multiply
   12,196.73x = 16,831.27 × 6,891.43
4. Step 4: Simplify right side
   12,196.73x = 115,991,506.86
5. Step 5: Solve for x
   x = 115,991,506.86/12,196.73
6. Step 6: Final answer
   x = 9,510.05