Finding the Fourth Proportional to 75.24, 103.83 and 42.49

Step by Step Solution

1. Step 1: Write the proportion equation
   75.24 : 103.83 = 42.49 : x
2. Step 2: Convert to fraction form
   75.24/103.83 = 42.49/x
3. Step 3: Cross multiply
   75.24x = 103.83 × 42.49
4. Step 4: Simplify right side
   75.24x = 4,411.59
5. Step 5: Solve for x
   x = 4,411.59/75.24
6. Step 6: Final answer
   x = 58.64