Finding the Fourth Proportional to 8,760.41, 12,087.52 and 5,572.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.41 : 12,087.52 = 5,572.55 : x
2. Step 2: Convert to fraction form
   8,760.41/12,087.52 = 5,572.55/x
3. Step 3: Cross multiply
   8,760.41x = 12,087.52 × 5,572.55
4. Step 4: Simplify right side
   8,760.41x = 67,358,273.54
5. Step 5: Solve for x
   x = 67,358,273.54/8,760.41
6. Step 6: Final answer
   x = 7,688.94