Finding the Fourth Proportional to 300.42, 414.59 and 176.18

Step by Step Solution

1. Step 1: Write the proportion equation
   300.42 : 414.59 = 176.18 : x
2. Step 2: Convert to fraction form
   300.42/414.59 = 176.18/x
3. Step 3: Cross multiply
   300.42x = 414.59 × 176.18
4. Step 4: Simplify right side
   300.42x = 73,039.51
5. Step 5: Solve for x
   x = 73,039.51/300.42
6. Step 6: Final answer
   x = 243.12