Finding the Fourth Proportional to 9,647.94, 13,314.78 and 5,399.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,647.94 : 13,314.78 = 5,399.49 : x
2. Step 2: Convert to fraction form
   9,647.94/13,314.78 = 5,399.49/x
3. Step 3: Cross multiply
   9,647.94x = 13,314.78 × 5,399.49
4. Step 4: Simplify right side
   9,647.94x = 71,893,071.39
5. Step 5: Solve for x
   x = 71,893,071.39/9,647.94
6. Step 6: Final answer
   x = 7,451.65