Finding the Fourth Proportional to 6,545.25, 9,031.56 and 3,891.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,545.25 : 9,031.56 = 3,891.69 : x
2. Step 2: Convert to fraction form
   6,545.25/9,031.56 = 3,891.69/x
3. Step 3: Cross multiply
   6,545.25x = 9,031.56 × 3,891.69
4. Step 4: Simplify right side
   6,545.25x = 35,147,986.58
5. Step 5: Solve for x
   x = 35,147,986.58/6,545.25
6. Step 6: Final answer
   x = 5,370.00