Finding the Fourth Proportional to 100.98, 151.37 and 68.41

Step by Step Solution

1. Step 1: Write the proportion equation
   100.98 : 151.37 = 68.41 : x
2. Step 2: Convert to fraction form
   100.98/151.37 = 68.41/x
3. Step 3: Cross multiply
   100.98x = 151.37 × 68.41
4. Step 4: Simplify right side
   100.98x = 10,355.33
5. Step 5: Solve for x
   x = 10,355.33/100.98
6. Step 6: Final answer
   x = 102.55