Finding the Fourth Proportional to 9,144.50, 12,620.75 and 5,369.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.50 : 12,620.75 = 5,369.73 : x
2. Step 2: Convert to fraction form
   9,144.50/12,620.75 = 5,369.73/x
3. Step 3: Cross multiply
   9,144.50x = 12,620.75 × 5,369.73
4. Step 4: Simplify right side
   9,144.50x = 67,769,993.05
5. Step 5: Solve for x
   x = 67,769,993.05/9,144.50
6. Step 6: Final answer
   x = 7,411.02