Finding the Fourth Proportional to 8,865.56, 12,231.94 and 5,723.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,865.56 : 12,231.94 = 5,723.60 : x
2. Step 2: Convert to fraction form
   8,865.56/12,231.94 = 5,723.60/x
3. Step 3: Cross multiply
   8,865.56x = 12,231.94 × 5,723.60
4. Step 4: Simplify right side
   8,865.56x = 70,010,731.78
5. Step 5: Solve for x
   x = 70,010,731.78/8,865.56
6. Step 6: Final answer
   x = 7,896.93