Finding the Fourth Proportional to 7,014.56, 9,680.40 and 3,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,014.56 : 9,680.40 = 3,870.56 : x
2. Step 2: Convert to fraction form
   7,014.56/9,680.40 = 3,870.56/x
3. Step 3: Cross multiply
   7,014.56x = 9,680.40 × 3,870.56
4. Step 4: Simplify right side
   7,014.56x = 37,468,569.02
5. Step 5: Solve for x
   x = 37,468,569.02/7,014.56
6. Step 6: Final answer
   x = 5,341.54