Finding the Fourth Proportional to 9,314.54, 12,856.79 and 5,540.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.54 : 12,856.79 = 5,540.36 : x
2. Step 2: Convert to fraction form
   9,314.54/12,856.79 = 5,540.36/x
3. Step 3: Cross multiply
   9,314.54x = 12,856.79 × 5,540.36
4. Step 4: Simplify right side
   9,314.54x = 71,231,245.04
5. Step 5: Solve for x
   x = 71,231,245.04/9,314.54
6. Step 6: Final answer
   x = 7,647.32