Finding the Fourth Proportional to 6,338.72, 8,748.20 and 3,980.41

Step by Step Solution

1. Step 1: Write the proportion equation
   6,338.72 : 8,748.20 = 3,980.41 : x
2. Step 2: Convert to fraction form
   6,338.72/8,748.20 = 3,980.41/x
3. Step 3: Cross multiply
   6,338.72x = 8,748.20 × 3,980.41
4. Step 4: Simplify right side
   6,338.72x = 34,821,410.84
5. Step 5: Solve for x
   x = 34,821,410.84/6,338.72
6. Step 6: Final answer
   x = 5,493.44