Finding the Fourth Proportional to 7,015.50, 9,681.39 and 3,871.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,015.50 : 9,681.39 = 3,871.71 : x
2. Step 2: Convert to fraction form
   7,015.50/9,681.39 = 3,871.71/x
3. Step 3: Cross multiply
   7,015.50x = 9,681.39 × 3,871.71
4. Step 4: Simplify right side
   7,015.50x = 37,483,534.48
5. Step 5: Solve for x
   x = 37,483,534.48/7,015.50
6. Step 6: Final answer
   x = 5,342.96