Finding the Fourth Proportional to 93.82, 140.60 and 42.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93.82 : 140.60 = 42.50 : x
2. Step 2: Convert to fraction form
   93.82/140.60 = 42.50/x
3. Step 3: Cross multiply
   93.82x = 140.60 × 42.50
4. Step 4: Simplify right side
   93.82x = 5,974.58
5. Step 5: Solve for x
   x = 5,974.58/93.82
6. Step 6: Final answer
   x = 63.68