Finding the Fourth Proportional to 99.96, 149.84 and 69.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99.96 : 149.84 = 69.42 : x
2. Step 2: Convert to fraction form
   99.96/149.84 = 69.42/x
3. Step 3: Cross multiply
   99.96x = 149.84 × 69.42
4. Step 4: Simplify right side
   99.96x = 10,401.89
5. Step 5: Solve for x
   x = 10,401.89/99.96
6. Step 6: Final answer
   x = 104.06