Finding the Fourth Proportional to 100.76, 150.22 and 100.52

Step by Step Solution

1. Step 1: Write the proportion equation
   100.76 : 150.22 = 100.52 : x
2. Step 2: Convert to fraction form
   100.76/150.22 = 100.52/x
3. Step 3: Cross multiply
   100.76x = 150.22 × 100.52
4. Step 4: Simplify right side
   100.76x = 15,100.11
5. Step 5: Solve for x
   x = 15,100.11/100.76
6. Step 6: Final answer
   x = 149.86