Finding the Fourth Proportional to 99.93, 149.60 and 67.43

Step by Step Solution

1. Step 1: Write the proportion equation
   99.93 : 149.60 = 67.43 : x
2. Step 2: Convert to fraction form
   99.93/149.60 = 67.43/x
3. Step 3: Cross multiply
   99.93x = 149.60 × 67.43
4. Step 4: Simplify right side
   99.93x = 10,087.69
5. Step 5: Solve for x
   x = 10,087.69/99.93
6. Step 6: Final answer
   x = 100.94