Finding the Fourth Proportional to 6,825.90, 10,237.56 and 3,128.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,825.90 : 10,237.56 = 3,128.22 : x
2. Step 2: Convert to fraction form
   6,825.90/10,237.56 = 3,128.22/x
3. Step 3: Cross multiply
   6,825.90x = 10,237.56 × 3,128.22
4. Step 4: Simplify right side
   6,825.90x = 32,025,339.94
5. Step 5: Solve for x
   x = 32,025,339.94/6,825.90
6. Step 6: Final answer
   x = 4,691.74