Finding the Fourth Proportional to 114.32, 171.52 and 42.19

Step by Step Solution

1. Step 1: Write the proportion equation
   114.32 : 171.52 = 42.19 : x
2. Step 2: Convert to fraction form
   114.32/171.52 = 42.19/x
3. Step 3: Cross multiply
   114.32x = 171.52 × 42.19
4. Step 4: Simplify right side
   114.32x = 7,235.89
5. Step 5: Solve for x
   x = 7,235.89/114.32
6. Step 6: Final answer
   x = 63.29