Finding the Fourth Proportional to 5,315.57, 7,969.39 and 3,667.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,315.57 : 7,969.39 = 3,667.49 : x
2. Step 2: Convert to fraction form
   5,315.57/7,969.39 = 3,667.49/x
3. Step 3: Cross multiply
   5,315.57x = 7,969.39 × 3,667.49
4. Step 4: Simplify right side
   5,315.57x = 29,227,609.12
5. Step 5: Solve for x
   x = 29,227,609.12/5,315.57
6. Step 6: Final answer
   x = 5,498.50