Finding the Fourth Proportional to 9,228.96, 12,735.09 and 5,691.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,228.96 : 12,735.09 = 5,691.49 : x
2. Step 2: Convert to fraction form
   9,228.96/12,735.09 = 5,691.49/x
3. Step 3: Cross multiply
   9,228.96x = 12,735.09 × 5,691.49
4. Step 4: Simplify right side
   9,228.96x = 72,481,605.55
5. Step 5: Solve for x
   x = 72,481,605.55/9,228.96
6. Step 6: Final answer
   x = 7,853.71