Finding the Fourth Proportional to 12,196.42, 16,831.02 and 6,607.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.42 : 16,831.02 = 6,607.42 : x
2. Step 2: Convert to fraction form
   12,196.42/16,831.02 = 6,607.42/x
3. Step 3: Cross multiply
   12,196.42x = 16,831.02 × 6,607.42
4. Step 4: Simplify right side
   12,196.42x = 111,209,618.17
5. Step 5: Solve for x
   x = 111,209,618.17/12,196.42
6. Step 6: Final answer
   x = 9,118.22