Finding the Fourth Proportional to 10,876.80, 16,315.82 and 3,085

Step by Step Solution

1. Step 1: Write the proportion equation
   10,876.80 : 16,315.82 = 3,085 : x
2. Step 2: Convert to fraction form
   10,876.80/16,315.82 = 3,085/x
3. Step 3: Cross multiply
   10,876.80x = 16,315.82 × 3,085
4. Step 4: Simplify right side
   10,876.80x = 50,334,304.70
5. Step 5: Solve for x
   x = 50,334,304.70/10,876.80
6. Step 6: Final answer
   x = 4,627.68