Finding the Fourth Proportional to 5,667.31, 8,496.09 and 2,155.36

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.31 : 8,496.09 = 2,155.36 : x
2. Step 2: Convert to fraction form
   5,667.31/8,496.09 = 2,155.36/x
3. Step 3: Cross multiply
   5,667.31x = 8,496.09 × 2,155.36
4. Step 4: Simplify right side
   5,667.31x = 18,312,132.54
5. Step 5: Solve for x
   x = 18,312,132.54/5,667.31
6. Step 6: Final answer
   x = 3,231.19