Finding the Fourth Proportional to 8,613.83, 12,920.71 and 3,067.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,613.83 : 12,920.71 = 3,067.39 : x
2. Step 2: Convert to fraction form
   8,613.83/12,920.71 = 3,067.39/x
3. Step 3: Cross multiply
   8,613.83x = 12,920.71 × 3,067.39
4. Step 4: Simplify right side
   8,613.83x = 39,632,856.65
5. Step 5: Solve for x
   x = 39,632,856.65/8,613.83
6. Step 6: Final answer
   x = 4,601.07