Finding the Fourth Proportional to 93.82, 140.79 and 42.48

Step by Step Solution

1. Step 1: Write the proportion equation
   93.82 : 140.79 = 42.48 : x
2. Step 2: Convert to fraction form
   93.82/140.79 = 42.48/x
3. Step 3: Cross multiply
   93.82x = 140.79 × 42.48
4. Step 4: Simplify right side
   93.82x = 5,980.76
5. Step 5: Solve for x
   x = 5,980.76/93.82
6. Step 6: Final answer
   x = 63.75