Finding the Fourth Proportional to 100.69, 150.82 and 76.25

Step by Step Solution

1. Step 1: Write the proportion equation
   100.69 : 150.82 = 76.25 : x
2. Step 2: Convert to fraction form
   100.69/150.82 = 76.25/x
3. Step 3: Cross multiply
   100.69x = 150.82 × 76.25
4. Step 4: Simplify right side
   100.69x = 11,500.03
5. Step 5: Solve for x
   x = 11,500.03/100.69
6. Step 6: Final answer
   x = 114.21