Finding the Fourth Proportional to 12,196.37, 16,831.37 and 6,891.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.37 : 16,831.37 = 6,891.53 : x
2. Step 2: Convert to fraction form
   12,196.37/16,831.37 = 6,891.53/x
3. Step 3: Cross multiply
   12,196.37x = 16,831.37 × 6,891.53
4. Step 4: Simplify right side
   12,196.37x = 115,993,824.37
5. Step 5: Solve for x
   x = 115,993,824.37/12,196.37
6. Step 6: Final answer
   x = 9,510.52