Finding the Fourth Proportional to 82.55, 113.91 and 45.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82.55 : 113.91 = 45.69 : x
2. Step 2: Convert to fraction form
   82.55/113.91 = 45.69/x
3. Step 3: Cross multiply
   82.55x = 113.91 × 45.69
4. Step 4: Simplify right side
   82.55x = 5,204.55
5. Step 5: Solve for x
   x = 5,204.55/82.55
6. Step 6: Final answer
   x = 63.05