Finding the Fourth Proportional to 8,150.92, 12,167.42 and 7,542.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,150.92 : 12,167.42 = 7,542.22 : x
2. Step 2: Convert to fraction form
   8,150.92/12,167.42 = 7,542.22/x
3. Step 3: Cross multiply
   8,150.92x = 12,167.42 × 7,542.22
4. Step 4: Simplify right side
   8,150.92x = 91,769,358.47
5. Step 5: Solve for x
   x = 91,769,358.47/8,150.92
6. Step 6: Final answer
   x = 11,258.77