Finding the Fourth Proportional to 8,839.74, 12,198.90 and 4,860.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,839.74 : 12,198.90 = 4,860.89 : x
2. Step 2: Convert to fraction form
   8,839.74/12,198.90 = 4,860.89/x
3. Step 3: Cross multiply
   8,839.74x = 12,198.90 × 4,860.89
4. Step 4: Simplify right side
   8,839.74x = 59,297,425.72
5. Step 5: Solve for x
   x = 59,297,425.72/8,839.74
6. Step 6: Final answer
   x = 6,708.05