Finding the Fourth Proportional to 10,879.18, 16,315.27 and 3,481.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,879.18 : 16,315.27 = 3,481.87 : x
2. Step 2: Convert to fraction form
   10,879.18/16,315.27 = 3,481.87/x
3. Step 3: Cross multiply
   10,879.18x = 16,315.27 × 3,481.87
4. Step 4: Simplify right side
   10,879.18x = 56,807,649.15
5. Step 5: Solve for x
   x = 56,807,649.15/10,879.18
6. Step 6: Final answer
   x = 5,221.68