Finding the Fourth Proportional to 118.49, 176.72 and 100.32

Step by Step Solution

1. Step 1: Write the proportion equation
   118.49 : 176.72 = 100.32 : x
2. Step 2: Convert to fraction form
   118.49/176.72 = 100.32/x
3. Step 3: Cross multiply
   118.49x = 176.72 × 100.32
4. Step 4: Simplify right side
   118.49x = 17,728.55
5. Step 5: Solve for x
   x = 17,728.55/118.49
6. Step 6: Final answer
   x = 149.62