Finding the Fourth Proportional to 300.69, 451.10 and 95.31

Step by Step Solution

1. Step 1: Write the proportion equation
   300.69 : 451.10 = 95.31 : x
2. Step 2: Convert to fraction form
   300.69/451.10 = 95.31/x
3. Step 3: Cross multiply
   300.69x = 451.10 × 95.31
4. Step 4: Simplify right side
   300.69x = 42,993.86
5. Step 5: Solve for x
   x = 42,993.86/300.69
6. Step 6: Final answer
   x = 142.98