Finding the Fourth Proportional to 8,776.73, 12,111.91 and 4,797.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.73 : 12,111.91 = 4,797.86 : x
2. Step 2: Convert to fraction form
   8,776.73/12,111.91 = 4,797.86/x
3. Step 3: Cross multiply
   8,776.73x = 12,111.91 × 4,797.86
4. Step 4: Simplify right side
   8,776.73x = 58,111,175.96
5. Step 5: Solve for x
   x = 58,111,175.96/8,776.73
6. Step 6: Final answer
   x = 6,621.05