Finding the Fourth Proportional to 12,196.50, 16,831.17 and 6,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.50 : 16,831.17 = 6,607.50 : x
2. Step 2: Convert to fraction form
   12,196.50/16,831.17 = 6,607.50/x
3. Step 3: Cross multiply
   12,196.50x = 16,831.17 × 6,607.50
4. Step 4: Simplify right side
   12,196.50x = 111,211,955.78
5. Step 5: Solve for x
   x = 111,211,955.78/12,196.50
6. Step 6: Final answer
   x = 9,118.35