Finding the Fourth Proportional to 6,105.88, 8,425.20 and 3,587.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.88 : 8,425.20 = 3,587.80 : x
2. Step 2: Convert to fraction form
   6,105.88/8,425.20 = 3,587.80/x
3. Step 3: Cross multiply
   6,105.88x = 8,425.20 × 3,587.80
4. Step 4: Simplify right side
   6,105.88x = 30,227,932.56
5. Step 5: Solve for x
   x = 30,227,932.56/6,105.88
6. Step 6: Final answer
   x = 4,950.63