Finding the Fourth Proportional to 12,196.88, 16,831.72 and 6,607.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.88 : 16,831.72 = 6,607.88 : x
2. Step 2: Convert to fraction form
   12,196.88/16,831.72 = 6,607.88/x
3. Step 3: Cross multiply
   12,196.88x = 16,831.72 × 6,607.88
4. Step 4: Simplify right side
   12,196.88x = 111,221,985.95
5. Step 5: Solve for x
   x = 111,221,985.95/12,196.88
6. Step 6: Final answer
   x = 9,118.89