Finding the Fourth Proportional to 99.49, 149.23 and 34.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99.49 : 149.23 = 34.48 : x
2. Step 2: Convert to fraction form
   99.49/149.23 = 34.48/x
3. Step 3: Cross multiply
   99.49x = 149.23 × 34.48
4. Step 4: Simplify right side
   99.49x = 5,145.91
5. Step 5: Solve for x
   x = 5,145.91/99.49
6. Step 6: Final answer
   x = 51.72