Finding the Fourth Proportional to 300.42, 450.72 and 95.00

Step by Step Solution

1. Step 1: Write the proportion equation
   300.42 : 450.72 = 95.00 : x
2. Step 2: Convert to fraction form
   300.42/450.72 = 95.00/x
3. Step 3: Cross multiply
   300.42x = 450.72 × 95.00
4. Step 4: Simplify right side
   300.42x = 42,816.15
5. Step 5: Solve for x
   x = 42,816.15/300.42
6. Step 6: Final answer
   x = 142.52