Finding the Fourth Proportional to 12,196.82, 16,831.95 and 6,891.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.82 : 16,831.95 = 6,891.53 : x
2. Step 2: Convert to fraction form
   12,196.82/16,831.95 = 6,891.53/x
3. Step 3: Cross multiply
   12,196.82x = 16,831.95 × 6,891.53
4. Step 4: Simplify right side
   12,196.82x = 115,997,778.38
5. Step 5: Solve for x
   x = 115,997,778.38/12,196.82
6. Step 6: Final answer
   x = 9,510.49