Finding the Fourth Proportional to 7,005.36, 9,667.80 and 3,861.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.36 : 9,667.80 = 3,861.60 : x
2. Step 2: Convert to fraction form
   7,005.36/9,667.80 = 3,861.60/x
3. Step 3: Cross multiply
   7,005.36x = 9,667.80 × 3,861.60
4. Step 4: Simplify right side
   7,005.36x = 37,333,176.48
5. Step 5: Solve for x
   x = 37,333,176.48/7,005.36
6. Step 6: Final answer
   x = 5,329.23