Finding the Fourth Proportional to 12,196.63, 16,831.41 and 6,607.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.63 : 16,831.41 = 6,607.63 : x
2. Step 2: Convert to fraction form
   12,196.63/16,831.41 = 6,607.63/x
3. Step 3: Cross multiply
   12,196.63x = 16,831.41 × 6,607.63
4. Step 4: Simplify right side
   12,196.63x = 111,215,645.50
5. Step 5: Solve for x
   x = 111,215,645.50/12,196.63
6. Step 6: Final answer
   x = 9,118.56