Finding the Fourth Proportional to 99.98, 150 and 67.61

Step by Step Solution

1. Step 1: Write the proportion equation
   99.98 : 150 = 67.61 : x
2. Step 2: Convert to fraction form
   99.98/150 = 67.61/x
3. Step 3: Cross multiply
   99.98x = 150 × 67.61
4. Step 4: Simplify right side
   99.98x = 10,141.50
5. Step 5: Solve for x
   x = 10,141.50/99.98
6. Step 6: Final answer
   x = 101.44