Finding the Fourth Proportional to 99.36, 149.58 and 67.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99.36 : 149.58 = 67.50 : x
2. Step 2: Convert to fraction form
   99.36/149.58 = 67.50/x
3. Step 3: Cross multiply
   99.36x = 149.58 × 67.50
4. Step 4: Simplify right side
   99.36x = 10,096.65
5. Step 5: Solve for x
   x = 10,096.65/99.36
6. Step 6: Final answer
   x = 101.62