Finding the Fourth Proportional to 108.66, 149.89 and 69.82

Step by Step Solution

1. Step 1: Write the proportion equation
   108.66 : 149.89 = 69.82 : x
2. Step 2: Convert to fraction form
   108.66/149.89 = 69.82/x
3. Step 3: Cross multiply
   108.66x = 149.89 × 69.82
4. Step 4: Simplify right side
   108.66x = 10,465.32
5. Step 5: Solve for x
   x = 10,465.32/108.66
6. Step 6: Final answer
   x = 96.31