Finding the Fourth Proportional to 99.69, 149.50 and 34.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99.69 : 149.50 = 34.69 : x
2. Step 2: Convert to fraction form
   99.69/149.50 = 34.69/x
3. Step 3: Cross multiply
   99.69x = 149.50 × 34.69
4. Step 4: Simplify right side
   99.69x = 5,186.16
5. Step 5: Solve for x
   x = 5,186.16/99.69
6. Step 6: Final answer
   x = 52.02