Finding the Fourth Proportional to 7,005.39, 9,667.23 and 3,861.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.39 : 9,667.23 = 3,861.57 : x
2. Step 2: Convert to fraction form
   7,005.39/9,667.23 = 3,861.57/x
3. Step 3: Cross multiply
   7,005.39x = 9,667.23 × 3,861.57
4. Step 4: Simplify right side
   7,005.39x = 37,330,685.35
5. Step 5: Solve for x
   x = 37,330,685.35/7,005.39
6. Step 6: Final answer
   x = 5,328.85