Finding the Fourth Proportional to 8,776.56, 12,111.42 and 4,797.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.56 : 12,111.42 = 4,797.68 : x
2. Step 2: Convert to fraction form
   8,776.56/12,111.42 = 4,797.68/x
3. Step 3: Cross multiply
   8,776.56x = 12,111.42 × 4,797.68
4. Step 4: Simplify right side
   8,776.56x = 58,106,717.51
5. Step 5: Solve for x
   x = 58,106,717.51/8,776.56
6. Step 6: Final answer
   x = 6,620.67