Finding the Fourth Proportional to 12,192.50, 16,825.65 and 6,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,192.50 : 16,825.65 = 6,603.50 : x
2. Step 2: Convert to fraction form
   12,192.50/16,825.65 = 6,603.50/x
3. Step 3: Cross multiply
   12,192.50x = 16,825.65 × 6,603.50
4. Step 4: Simplify right side
   12,192.50x = 111,108,179.78
5. Step 5: Solve for x
   x = 111,108,179.78/12,192.50
6. Step 6: Final answer
   x = 9,112.83