Finding the Fourth Proportional to 42.29, 63.18 and 42.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42.29 : 63.18 = 42.06 : x
2. Step 2: Convert to fraction form
   42.29/63.18 = 42.06/x
3. Step 3: Cross multiply
   42.29x = 63.18 × 42.06
4. Step 4: Simplify right side
   42.29x = 2,657.14
5. Step 5: Solve for x
   x = 2,657.14/42.29
6. Step 6: Final answer
   x = 62.84