Finding the Fourth Proportional to 42.32, 63.32 and 36.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42.32 : 63.32 = 36.69 : x
2. Step 2: Convert to fraction form
   42.32/63.32 = 36.69/x
3. Step 3: Cross multiply
   42.32x = 63.32 × 36.69
4. Step 4: Simplify right side
   42.32x = 2,322.79
5. Step 5: Solve for x
   x = 2,322.79/42.32
6. Step 6: Final answer
   x = 54.88