Finding the Fourth Proportional to 10,878.35, 16,319.57 and 3,480.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,878.35 : 16,319.57 = 3,480.82 : x
2. Step 2: Convert to fraction form
   10,878.35/16,319.57 = 3,480.82/x
3. Step 3: Cross multiply
   10,878.35x = 16,319.57 × 3,480.82
4. Step 4: Simplify right side
   10,878.35x = 56,805,485.65
5. Step 5: Solve for x
   x = 56,805,485.65/10,878.35
6. Step 6: Final answer
   x = 5,221.88