Finding the Fourth Proportional to 6,872.17, 9,483.56 and 3,728.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,872.17 : 9,483.56 = 3,728.29 : x
2. Step 2: Convert to fraction form
   6,872.17/9,483.56 = 3,728.29/x
3. Step 3: Cross multiply
   6,872.17x = 9,483.56 × 3,728.29
4. Step 4: Simplify right side
   6,872.17x = 35,357,443.27
5. Step 5: Solve for x
   x = 35,357,443.27/6,872.17
6. Step 6: Final answer
   x = 5,145.02