Finding the Fourth Proportional to 8,608.48, 12,909.98 and 3,343.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,608.48 : 12,909.98 = 3,343.12 : x
2. Step 2: Convert to fraction form
   8,608.48/12,909.98 = 3,343.12/x
3. Step 3: Cross multiply
   8,608.48x = 12,909.98 × 3,343.12
4. Step 4: Simplify right side
   8,608.48x = 43,159,661.04
5. Step 5: Solve for x
   x = 43,159,661.04/8,608.48
6. Step 6: Final answer
   x = 5,013.62