Finding the Fourth Proportional to 6,767.20, 10,139.82 and 3,475.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,767.20 : 10,139.82 = 3,475.72 : x
2. Step 2: Convert to fraction form
   6,767.20/10,139.82 = 3,475.72/x
3. Step 3: Cross multiply
   6,767.20x = 10,139.82 × 3,475.72
4. Step 4: Simplify right side
   6,767.20x = 35,243,175.17
5. Step 5: Solve for x
   x = 35,243,175.17/6,767.20
6. Step 6: Final answer
   x = 5,207.94