Finding the Fourth Proportional to 12,196.18, 16,830.78 and 6,607.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.18 : 16,830.78 = 6,607.18 : x
2. Step 2: Convert to fraction form
   12,196.18/16,830.78 = 6,607.18/x
3. Step 3: Cross multiply
   12,196.18x = 16,830.78 × 6,607.18
4. Step 4: Simplify right side
   12,196.18x = 111,203,993.00
5. Step 5: Solve for x
   x = 111,203,993.00/12,196.18
6. Step 6: Final answer
   x = 9,117.94