Finding the Fourth Proportional to 8,336.69, 12,491.15 and 5,866.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,336.69 : 12,491.15 = 5,866.32 : x
2. Step 2: Convert to fraction form
   8,336.69/12,491.15 = 5,866.32/x
3. Step 3: Cross multiply
   8,336.69x = 12,491.15 × 5,866.32
4. Step 4: Simplify right side
   8,336.69x = 73,277,028.89
5. Step 5: Solve for x
   x = 73,277,028.89/8,336.69
6. Step 6: Final answer
   x = 8,789.70