Finding the Fourth Proportional to 8,993.16, 12,411.49 and 5,409.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,993.16 : 12,411.49 = 5,409.27 : x
2. Step 2: Convert to fraction form
   8,993.16/12,411.49 = 5,409.27/x
3. Step 3: Cross multiply
   8,993.16x = 12,411.49 × 5,409.27
4. Step 4: Simplify right side
   8,993.16x = 67,137,143.67
5. Step 5: Solve for x
   x = 67,137,143.67/8,993.16
6. Step 6: Final answer
   x = 7,465.35