Finding the Fourth Proportional to 9,168.50, 12,655.41 and 5,441.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,168.50 : 12,655.41 = 5,441.78 : x
2. Step 2: Convert to fraction form
   9,168.50/12,655.41 = 5,441.78/x
3. Step 3: Cross multiply
   9,168.50x = 12,655.41 × 5,441.78
4. Step 4: Simplify right side
   9,168.50x = 68,867,957.03
5. Step 5: Solve for x
   x = 68,867,957.03/9,168.50
6. Step 6: Final answer
   x = 7,511.37