Finding the Fourth Proportional to 10,882.78, 16,324.55 and 3,486.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,882.78 : 16,324.55 = 3,486.28 : x
2. Step 2: Convert to fraction form
   10,882.78/16,324.55 = 3,486.28/x
3. Step 3: Cross multiply
   10,882.78x = 16,324.55 × 3,486.28
4. Step 4: Simplify right side
   10,882.78x = 56,911,870.55
5. Step 5: Solve for x
   x = 56,911,870.55/10,882.78
6. Step 6: Final answer
   x = 5,229.54