Finding the Fourth Proportional to 7,014.30, 9,679.87 and 3,870.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,014.30 : 9,679.87 = 3,870.48 : x
2. Step 2: Convert to fraction form
   7,014.30/9,679.87 = 3,870.48/x
3. Step 3: Cross multiply
   7,014.30x = 9,679.87 × 3,870.48
4. Step 4: Simplify right side
   7,014.30x = 37,465,784.38
5. Step 5: Solve for x
   x = 37,465,784.38/7,014.30
6. Step 6: Final answer
   x = 5,341.35