Finding the Fourth Proportional to 9,380.27, 12,944.35 and 5,400.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,380.27 : 12,944.35 = 5,400.54 : x
2. Step 2: Convert to fraction form
   9,380.27/12,944.35 = 5,400.54/x
3. Step 3: Cross multiply
   9,380.27x = 12,944.35 × 5,400.54
4. Step 4: Simplify right side
   9,380.27x = 69,906,486.70
5. Step 5: Solve for x
   x = 69,906,486.70/9,380.27
6. Step 6: Final answer
   x = 7,452.50