Finding the Fourth Proportional to 90.82, 136.24 and 29.94

Step by Step Solution

1. Step 1: Write the proportion equation
   90.82 : 136.24 = 29.94 : x
2. Step 2: Convert to fraction form
   90.82/136.24 = 29.94/x
3. Step 3: Cross multiply
   90.82x = 136.24 × 29.94
4. Step 4: Simplify right side
   90.82x = 4,078.52
5. Step 5: Solve for x
   x = 4,078.52/90.82
6. Step 6: Final answer
   x = 44.91