Finding the Fourth Proportional to 99.82, 149.50 and 69.41

Step by Step Solution

1. Step 1: Write the proportion equation
   99.82 : 149.50 = 69.41 : x
2. Step 2: Convert to fraction form
   99.82/149.50 = 69.41/x
3. Step 3: Cross multiply
   99.82x = 149.50 × 69.41
4. Step 4: Simplify right side
   99.82x = 10,376.80
5. Step 5: Solve for x
   x = 10,376.80/99.82
6. Step 6: Final answer
   x = 103.96