Finding the Fourth Proportional to 7,015.38, 9,681.15 and 3,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,015.38 : 9,681.15 = 3,871.50 : x
2. Step 2: Convert to fraction form
   7,015.38/9,681.15 = 3,871.50/x
3. Step 3: Cross multiply
   7,015.38x = 9,681.15 × 3,871.50
4. Step 4: Simplify right side
   7,015.38x = 37,480,572.23
5. Step 5: Solve for x
   x = 37,480,572.23/7,015.38
6. Step 6: Final answer
   x = 5,342.63