Finding the Fourth Proportional to 6,478.67, 8,940.07 and 3,825.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,478.67 : 8,940.07 = 3,825.56 : x
2. Step 2: Convert to fraction form
   6,478.67/8,940.07 = 3,825.56/x
3. Step 3: Cross multiply
   6,478.67x = 8,940.07 × 3,825.56
4. Step 4: Simplify right side
   6,478.67x = 34,200,786.98
5. Step 5: Solve for x
   x = 34,200,786.98/6,478.67
6. Step 6: Final answer
   x = 5,278.99