Finding the Fourth Proportional to 8,776.90, 12,111.96 and 4,797.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.90 : 12,111.96 = 4,797.82 : x
2. Step 2: Convert to fraction form
   8,776.90/12,111.96 = 4,797.82/x
3. Step 3: Cross multiply
   8,776.90x = 12,111.96 × 4,797.82
4. Step 4: Simplify right side
   8,776.90x = 58,111,003.93
5. Step 5: Solve for x
   x = 58,111,003.93/8,776.90
6. Step 6: Final answer
   x = 6,620.90