Finding the Fourth Proportional to 7,005.56, 9,667.88 and 3,861.95

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.56 : 9,667.88 = 3,861.95 : x
2. Step 2: Convert to fraction form
   7,005.56/9,667.88 = 3,861.95/x
3. Step 3: Cross multiply
   7,005.56x = 9,667.88 × 3,861.95
4. Step 4: Simplify right side
   7,005.56x = 37,336,902.99
5. Step 5: Solve for x
   x = 37,336,902.99/7,005.56
6. Step 6: Final answer
   x = 5,329.61