Finding the Fourth Proportional to 8,580.65, 12,846.71 and 5,452.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,580.65 : 12,846.71 = 5,452.91 : x
2. Step 2: Convert to fraction form
   8,580.65/12,846.71 = 5,452.91/x
3. Step 3: Cross multiply
   8,580.65x = 12,846.71 × 5,452.91
4. Step 4: Simplify right side
   8,580.65x = 70,051,902.82
5. Step 5: Solve for x
   x = 70,051,902.82/8,580.65
6. Step 6: Final answer
   x = 8,163.94