Finding the Fourth Proportional to 7,014.50, 9,680.07 and 3,870.77

Step by Step Solution

1. Step 1: Write the proportion equation
   7,014.50 : 9,680.07 = 3,870.77 : x
2. Step 2: Convert to fraction form
   7,014.50/9,680.07 = 3,870.77/x
3. Step 3: Cross multiply
   7,014.50x = 9,680.07 × 3,870.77
4. Step 4: Simplify right side
   7,014.50x = 37,469,324.55
5. Step 5: Solve for x
   x = 37,469,324.55/7,014.50
6. Step 6: Final answer
   x = 5,341.70