Finding the Fourth Proportional to 6,716.50, 10,074.78 and 2,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,716.50 : 10,074.78 = 2,099.50 : x
2. Step 2: Convert to fraction form
   6,716.50/10,074.78 = 2,099.50/x
3. Step 3: Cross multiply
   6,716.50x = 10,074.78 × 2,099.50
4. Step 4: Simplify right side
   6,716.50x = 21,152,000.61
5. Step 5: Solve for x
   x = 21,152,000.61/6,716.50
6. Step 6: Final answer
   x = 3,149.26