Finding the Fourth Proportional to 8,099.80, 12,148.72 and 3,482.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,099.80 : 12,148.72 = 3,482.20 : x
2. Step 2: Convert to fraction form
   8,099.80/12,148.72 = 3,482.20/x
3. Step 3: Cross multiply
   8,099.80x = 12,148.72 × 3,482.20
4. Step 4: Simplify right side
   8,099.80x = 42,304,272.78
5. Step 5: Solve for x
   x = 42,304,272.78/8,099.80
6. Step 6: Final answer
   x = 5,222.88