Finding the Fourth Proportional to 10,855.50, 16,283.25 and 3,930

Step by Step Solution

1. Step 1: Write the proportion equation
   10,855.50 : 16,283.25 = 3,930 : x
2. Step 2: Convert to fraction form
   10,855.50/16,283.25 = 3,930/x
3. Step 3: Cross multiply
   10,855.50x = 16,283.25 × 3,930
4. Step 4: Simplify right side
   10,855.50x = 63,993,172.50
5. Step 5: Solve for x
   x = 63,993,172.50/10,855.50
6. Step 6: Final answer
   x = 5,895