Finding the Fourth Proportional to 62.42, 93.45 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   62.42 : 93.45 = 42.10 : x
2. Step 2: Convert to fraction form
   62.42/93.45 = 42.10/x
3. Step 3: Cross multiply
   62.42x = 93.45 × 42.10
4. Step 4: Simplify right side
   62.42x = 3,934.25
5. Step 5: Solve for x
   x = 3,934.25/62.42
6. Step 6: Final answer
   x = 63.03