Finding the Fourth Proportional to 3,976,958.16, 5,486,456.52 and 2,687,328.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976,958.16 : 5,486,456.52 = 2,687,328.72 : x
2. Step 2: Convert to fraction form
   3,976,958.16/5,486,456.52 = 2,687,328.72/x
3. Step 3: Cross multiply
   3,976,958.16x = 5,486,456.52 × 2,687,328.72
4. Step 4: Simplify right side
   3,976,958.16x = 14,743,912,177,227.25
5. Step 5: Solve for x
   x = 14,743,912,177,227.25/3,976,958.16
6. Step 6: Final answer
   x = 3,707,333.99