Finding the Fourth Proportional to 49.32, 73.89 and 42.53

Step by Step Solution

1. Step 1: Write the proportion equation
   49.32 : 73.89 = 42.53 : x
2. Step 2: Convert to fraction form
   49.32/73.89 = 42.53/x
3. Step 3: Cross multiply
   49.32x = 73.89 × 42.53
4. Step 4: Simplify right side
   49.32x = 3,142.17
5. Step 5: Solve for x
   x = 3,142.17/49.32
6. Step 6: Final answer
   x = 63.71