Finding the Fourth Proportional to 99.94, 149.88 and 67.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99.94 : 149.88 = 67.42 : x
2. Step 2: Convert to fraction form
   99.94/149.88 = 67.42/x
3. Step 3: Cross multiply
   99.94x = 149.88 × 67.42
4. Step 4: Simplify right side
   99.94x = 10,104.91
5. Step 5: Solve for x
   x = 10,104.91/99.94
6. Step 6: Final answer
   x = 101.11