Finding the Fourth Proportional to 8,078.72, 11,168.68 and 8,004.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078.72 : 11,168.68 = 8,004.92 : x
2. Step 2: Convert to fraction form
   8,078.72/11,168.68 = 8,004.92/x
3. Step 3: Cross multiply
   8,078.72x = 11,168.68 × 8,004.92
4. Step 4: Simplify right side
   8,078.72x = 89,404,389.91
5. Step 5: Solve for x
   x = 89,404,389.91/8,078.72
6. Step 6: Final answer
   x = 11,066.65