Finding the Fourth Proportional to 7,005.57, 9,667.89 and 3,861.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.57 : 9,667.89 = 3,861.96 : x
2. Step 2: Convert to fraction form
   7,005.57/9,667.89 = 3,861.96/x
3. Step 3: Cross multiply
   7,005.57x = 9,667.89 × 3,861.96
4. Step 4: Simplify right side
   7,005.57x = 37,337,004.46
5. Step 5: Solve for x
   x = 37,337,004.46/7,005.57
6. Step 6: Final answer
   x = 5,329.62