Finding the Fourth Proportional to 8,815.69, 12,169.56 and 5,633.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815.69 : 12,169.56 = 5,633.17 : x
2. Step 2: Convert to fraction form
   8,815.69/12,169.56 = 5,633.17/x
3. Step 3: Cross multiply
   8,815.69x = 12,169.56 × 5,633.17
4. Step 4: Simplify right side
   8,815.69x = 68,553,200.31
5. Step 5: Solve for x
   x = 68,553,200.31/8,815.69
6. Step 6: Final answer
   x = 7,776.27