Finding the Fourth Proportional to 118.05, 162.98 and 109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118.05 : 162.98 = 109.88 : x
2. Step 2: Convert to fraction form
   118.05/162.98 = 109.88/x
3. Step 3: Cross multiply
   118.05x = 162.98 × 109.88
4. Step 4: Simplify right side
   118.05x = 17,908.52
5. Step 5: Solve for x
   x = 17,908.52/118.05
6. Step 6: Final answer
   x = 151.71