Finding the Fourth Proportional to 10,874.82, 16,310.68 and 3,478.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,874.82 : 16,310.68 = 3,478.31 : x
2. Step 2: Convert to fraction form
   10,874.82/16,310.68 = 3,478.31/x
3. Step 3: Cross multiply
   10,874.82x = 16,310.68 × 3,478.31
4. Step 4: Simplify right side
   10,874.82x = 56,733,601.35
5. Step 5: Solve for x
   x = 56,733,601.35/10,874.82
6. Step 6: Final answer
   x = 5,216.97