Finding the Fourth Proportional to 6,722.52, 10,074.55 and 3,428.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,722.52 : 10,074.55 = 3,428.69 : x
2. Step 2: Convert to fraction form
   6,722.52/10,074.55 = 3,428.69/x
3. Step 3: Cross multiply
   6,722.52x = 10,074.55 × 3,428.69
4. Step 4: Simplify right side
   6,722.52x = 34,542,536.80
5. Step 5: Solve for x
   x = 34,542,536.80/6,722.52
6. Step 6: Final answer
   x = 5,138.33