Finding the Fourth Proportional to 16,228.69, 22,395.59 and 8,776.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,228.69 : 22,395.59 = 8,776.69 : x
2. Step 2: Convert to fraction form
   16,228.69/22,395.59 = 8,776.69/x
3. Step 3: Cross multiply
   16,228.69x = 22,395.59 × 8,776.69
4. Step 4: Simplify right side
   16,228.69x = 196,559,083.84
5. Step 5: Solve for x
   x = 196,559,083.84/16,228.69
6. Step 6: Final answer
   x = 12,111.83