Finding the Fourth Proportional to 300.31, 450.53 and 94.89

Step by Step Solution

1. Step 1: Write the proportion equation
   300.31 : 450.53 = 94.89 : x
2. Step 2: Convert to fraction form
   300.31/450.53 = 94.89/x
3. Step 3: Cross multiply
   300.31x = 450.53 × 94.89
4. Step 4: Simplify right side
   300.31x = 42,749.83
5. Step 5: Solve for x
   x = 42,749.83/300.31
6. Step 6: Final answer
   x = 142.35