Finding the Fourth Proportional to 10,015.52, 15,019.68 and 3,439.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015.52 : 15,019.68 = 3,439.96 : x
2. Step 2: Convert to fraction form
   10,015.52/15,019.68 = 3,439.96/x
3. Step 3: Cross multiply
   10,015.52x = 15,019.68 × 3,439.96
4. Step 4: Simplify right side
   10,015.52x = 51,667,098.41
5. Step 5: Solve for x
   x = 51,667,098.41/10,015.52
6. Step 6: Final answer
   x = 5,158.70