Finding the Fourth Proportional to 100.02, 150.72 and 100.02

Step by Step Solution

1. Step 1: Write the proportion equation
   100.02 : 150.72 = 100.02 : x
2. Step 2: Convert to fraction form
   100.02/150.72 = 100.02/x
3. Step 3: Cross multiply
   100.02x = 150.72 × 100.02
4. Step 4: Simplify right side
   100.02x = 15,074.92
5. Step 5: Solve for x
   x = 15,074.92/100.02
6. Step 6: Final answer
   x = 150.72