Finding the Fourth Proportional to 16,228.76, 22,395.56 and 8,776.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,228.76 : 22,395.56 = 8,776.76 : x
2. Step 2: Convert to fraction form
   16,228.76/22,395.56 = 8,776.76/x
3. Step 3: Cross multiply
   16,228.76x = 22,395.56 × 8,776.76
4. Step 4: Simplify right side
   16,228.76x = 196,560,299.32
5. Step 5: Solve for x
   x = 196,560,299.32/16,228.76
6. Step 6: Final answer
   x = 12,111.85