Finding the Fourth Proportional to 100.75, 151.00 and 48.72

Step by Step Solution

1. Step 1: Write the proportion equation
   100.75 : 151.00 = 48.72 : x
2. Step 2: Convert to fraction form
   100.75/151.00 = 48.72/x
3. Step 3: Cross multiply
   100.75x = 151.00 × 48.72
4. Step 4: Simplify right side
   100.75x = 7,355.72
5. Step 5: Solve for x
   x = 7,355.72/100.75
6. Step 6: Final answer
   x = 73.01