Finding the Fourth Proportional to 12,196.07, 16,830.57 and 6,607.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.07 : 16,830.57 = 6,607.07 : x
2. Step 2: Convert to fraction form
   12,196.07/16,830.57 = 6,607.07/x
3. Step 3: Cross multiply
   12,196.07x = 16,830.57 × 6,607.07
4. Step 4: Simplify right side
   12,196.07x = 111,200,636.94
5. Step 5: Solve for x
   x = 111,200,636.94/12,196.07
6. Step 6: Final answer
   x = 9,117.75