Finding the Fourth Proportional to 6,578.41, 9,870.50 and 3,457.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,578.41 : 9,870.50 = 3,457.69 : x
2. Step 2: Convert to fraction form
   6,578.41/9,870.50 = 3,457.69/x
3. Step 3: Cross multiply
   6,578.41x = 9,870.50 × 3,457.69
4. Step 4: Simplify right side
   6,578.41x = 34,129,129.15
5. Step 5: Solve for x
   x = 34,129,129.15/6,578.41
6. Step 6: Final answer
   x = 5,188.05