Finding the Fourth Proportional to 3,776.43, 5,212.98 and 3,116.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,776.43 : 5,212.98 = 3,116.28 : x
2. Step 2: Convert to fraction form
   3,776.43/5,212.98 = 3,116.28/x
3. Step 3: Cross multiply
   3,776.43x = 5,212.98 × 3,116.28
4. Step 4: Simplify right side
   3,776.43x = 16,245,105.31
5. Step 5: Solve for x
   x = 16,245,105.31/3,776.43
6. Step 6: Final answer
   x = 4,301.71