Finding the Fourth Proportional to 8,149.86, 12,163.20 and 7,362.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,149.86 : 12,163.20 = 7,362.54 : x
2. Step 2: Convert to fraction form
   8,149.86/12,163.20 = 7,362.54/x
3. Step 3: Cross multiply
   8,149.86x = 12,163.20 × 7,362.54
4. Step 4: Simplify right side
   8,149.86x = 89,552,046.53
5. Step 5: Solve for x
   x = 89,552,046.53/8,149.86
6. Step 6: Final answer
   x = 10,988.17