Finding the Fourth Proportional to 12,196.69, 16,831.44 and 6,607.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.69 : 16,831.44 = 6,607.69 : x
2. Step 2: Convert to fraction form
   12,196.69/16,831.44 = 6,607.69/x
3. Step 3: Cross multiply
   12,196.69x = 16,831.44 × 6,607.69
4. Step 4: Simplify right side
   12,196.69x = 111,216,904.74
5. Step 5: Solve for x
   x = 111,216,904.74/12,196.69
6. Step 6: Final answer
   x = 9,118.61