Finding the Fourth Proportional to 96.47, 144.73 and 28.00

Step by Step Solution

1. Step 1: Write the proportion equation
   96.47 : 144.73 = 28.00 : x
2. Step 2: Convert to fraction form
   96.47/144.73 = 28.00/x
3. Step 3: Cross multiply
   96.47x = 144.73 × 28.00
4. Step 4: Simplify right side
   96.47x = 4,051.61
5. Step 5: Solve for x
   x = 4,051.61/96.47
6. Step 6: Final answer
   x = 42.00