Finding the Fourth Proportional to 9,019.54, 12,447.72 and 5,243.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.54 : 12,447.72 = 5,243.92 : x
2. Step 2: Convert to fraction form
   9,019.54/12,447.72 = 5,243.92/x
3. Step 3: Cross multiply
   9,019.54x = 12,447.72 × 5,243.92
4. Step 4: Simplify right side
   9,019.54x = 65,274,847.86
5. Step 5: Solve for x
   x = 65,274,847.86/9,019.54
6. Step 6: Final answer
   x = 7,237.05