Finding the Fourth Proportional to 82.42, 113.74 and 45.58

Step by Step Solution

1. Step 1: Write the proportion equation
   82.42 : 113.74 = 45.58 : x
2. Step 2: Convert to fraction form
   82.42/113.74 = 45.58/x
3. Step 3: Cross multiply
   82.42x = 113.74 × 45.58
4. Step 4: Simplify right side
   82.42x = 5,185.02
5. Step 5: Solve for x
   x = 5,185.02/82.42
6. Step 6: Final answer
   x = 62.91