Finding the Fourth Proportional to 96.10, 144.15 and 42.00

Step by Step Solution

1. Step 1: Write the proportion equation
   96.10 : 144.15 = 42.00 : x
2. Step 2: Convert to fraction form
   96.10/144.15 = 42.00/x
3. Step 3: Cross multiply
   96.10x = 144.15 × 42.00
4. Step 4: Simplify right side
   96.10x = 6,053.58
5. Step 5: Solve for x
   x = 6,053.58/96.10
6. Step 6: Final answer
   x = 63.00