Finding the Fourth Proportional to 9,314.30, 12,856.44 and 5,540.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.30 : 12,856.44 = 5,540.12 : x
2. Step 2: Convert to fraction form
   9,314.30/12,856.44 = 5,540.12/x
3. Step 3: Cross multiply
   9,314.30x = 12,856.44 × 5,540.12
4. Step 4: Simplify right side
   9,314.30x = 71,226,220.37
5. Step 5: Solve for x
   x = 71,226,220.37/9,314.30
6. Step 6: Final answer
   x = 7,646.98