Finding the Fourth Proportional to 140.24, 193.72 and 103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   140.24 : 193.72 = 103.52 : x
2. Step 2: Convert to fraction form
   140.24/193.72 = 103.52/x
3. Step 3: Cross multiply
   140.24x = 193.72 × 103.52
4. Step 4: Simplify right side
   140.24x = 20,053.89
5. Step 5: Solve for x
   x = 20,053.89/140.24
6. Step 6: Final answer
   x = 143.00