Finding the Fourth Proportional to 144.02, 215.98 and 46.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144.02 : 215.98 = 46.50 : x
2. Step 2: Convert to fraction form
   144.02/215.98 = 46.50/x
3. Step 3: Cross multiply
   144.02x = 215.98 × 46.50
4. Step 4: Simplify right side
   144.02x = 10,041.76
5. Step 5: Solve for x
   x = 10,041.76/144.02
6. Step 6: Final answer
   x = 69.72