Finding the Fourth Proportional to 6,105.78, 8,424.51 and 3,587.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.78 : 8,424.51 = 3,587.69 : x
2. Step 2: Convert to fraction form
   6,105.78/8,424.51 = 3,587.69/x
3. Step 3: Cross multiply
   6,105.78x = 8,424.51 × 3,587.69
4. Step 4: Simplify right side
   6,105.78x = 30,224,537.89
5. Step 5: Solve for x
   x = 30,224,537.89/6,105.78
6. Step 6: Final answer
   x = 4,950.15