Finding the Fourth Proportional to 8,776.27, 12,111.56 and 4,797.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.27 : 12,111.56 = 4,797.55 : x
2. Step 2: Convert to fraction form
   8,776.27/12,111.56 = 4,797.55/x
3. Step 3: Cross multiply
   8,776.27x = 12,111.56 × 4,797.55
4. Step 4: Simplify right side
   8,776.27x = 58,105,790.69
5. Step 5: Solve for x
   x = 58,105,790.69/8,776.27
6. Step 6: Final answer
   x = 6,620.78