Finding the Fourth Proportional to 8,776.57, 12,111.83 and 4,797.85

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.57 : 12,111.83 = 4,797.85 : x
2. Step 2: Convert to fraction form
   8,776.57/12,111.83 = 4,797.85/x
3. Step 3: Cross multiply
   8,776.57x = 12,111.83 × 4,797.85
4. Step 4: Simplify right side
   8,776.57x = 58,110,743.57
5. Step 5: Solve for x
   x = 58,110,743.57/8,776.57
6. Step 6: Final answer
   x = 6,621.12