Finding the Fourth Proportional to 8,099.54, 12,151.60 and 7,328.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,099.54 : 12,151.60 = 7,328.42 : x
2. Step 2: Convert to fraction form
   8,099.54/12,151.60 = 7,328.42/x
3. Step 3: Cross multiply
   8,099.54x = 12,151.60 × 7,328.42
4. Step 4: Simplify right side
   8,099.54x = 89,052,028.47
5. Step 5: Solve for x
   x = 89,052,028.47/8,099.54
6. Step 6: Final answer
   x = 10,994.70