Finding the Fourth Proportional to 8,582.43, 12,897.85 and 5,074.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,582.43 : 12,897.85 = 5,074.10 : x
2. Step 2: Convert to fraction form
   8,582.43/12,897.85 = 5,074.10/x
3. Step 3: Cross multiply
   8,582.43x = 12,897.85 × 5,074.10
4. Step 4: Simplify right side
   8,582.43x = 65,444,980.69
5. Step 5: Solve for x
   x = 65,444,980.69/8,582.43
6. Step 6: Final answer
   x = 7,625.46