Finding the Fourth Proportional to 8,896.89, 12,280.06 and 5,120.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,896.89 : 12,280.06 = 5,120.52 : x
2. Step 2: Convert to fraction form
   8,896.89/12,280.06 = 5,120.52/x
3. Step 3: Cross multiply
   8,896.89x = 12,280.06 × 5,120.52
4. Step 4: Simplify right side
   8,896.89x = 62,880,292.83
5. Step 5: Solve for x
   x = 62,880,292.83/8,896.89
6. Step 6: Final answer
   x = 7,067.67