Finding the Fourth Proportional to 93.69, 140.58 and 42.35

Step by Step Solution

1. Step 1: Write the proportion equation
   93.69 : 140.58 = 42.35 : x
2. Step 2: Convert to fraction form
   93.69/140.58 = 42.35/x
3. Step 3: Cross multiply
   93.69x = 140.58 × 42.35
4. Step 4: Simplify right side
   93.69x = 5,952.86
5. Step 5: Solve for x
   x = 5,952.86/93.69
6. Step 6: Final answer
   x = 63.54