Finding the Fourth Proportional to 7,126.72, 10,682.52 and 3,426.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,126.72 : 10,682.52 = 3,426.64 : x
2. Step 2: Convert to fraction form
   7,126.72/10,682.52 = 3,426.64/x
3. Step 3: Cross multiply
   7,126.72x = 10,682.52 × 3,426.64
4. Step 4: Simplify right side
   7,126.72x = 36,605,150.33
5. Step 5: Solve for x
   x = 36,605,150.33/7,126.72
6. Step 6: Final answer
   x = 5,136.33