Finding the Fourth Proportional to 6,872.42, 9,483.90 and 3,728.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,872.42 : 9,483.90 = 3,728.54 : x
2. Step 2: Convert to fraction form
   6,872.42/9,483.90 = 3,728.54/x
3. Step 3: Cross multiply
   6,872.42x = 9,483.90 × 3,728.54
4. Step 4: Simplify right side
   6,872.42x = 35,361,100.51
5. Step 5: Solve for x
   x = 35,361,100.51/6,872.42
6. Step 6: Final answer
   x = 5,145.36