Finding the Fourth Proportional to 118.05, 176.22 and 109.61

Step by Step Solution

1. Step 1: Write the proportion equation
   118.05 : 176.22 = 109.61 : x
2. Step 2: Convert to fraction form
   118.05/176.22 = 109.61/x
3. Step 3: Cross multiply
   118.05x = 176.22 × 109.61
4. Step 4: Simplify right side
   118.05x = 19,314.59
5. Step 5: Solve for x
   x = 19,314.59/118.05
6. Step 6: Final answer
   x = 163.61