Finding the Fourth Proportional to 8,229.47, 12,319.98 and 5,099.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,229.47 : 12,319.98 = 5,099.42 : x
2. Step 2: Convert to fraction form
   8,229.47/12,319.98 = 5,099.42/x
3. Step 3: Cross multiply
   8,229.47x = 12,319.98 × 5,099.42
4. Step 4: Simplify right side
   8,229.47x = 62,824,750.55
5. Step 5: Solve for x
   x = 62,824,750.55/8,229.47
6. Step 6: Final answer
   x = 7,634.11