Finding the Fourth Proportional to 82.10, 113.49 and 62.52

Step by Step Solution

1. Step 1: Write the proportion equation
   82.10 : 113.49 = 62.52 : x
2. Step 2: Convert to fraction form
   82.10/113.49 = 62.52/x
3. Step 3: Cross multiply
   82.10x = 113.49 × 62.52
4. Step 4: Simplify right side
   82.10x = 7,095.78
5. Step 5: Solve for x
   x = 7,095.78/82.10
6. Step 6: Final answer
   x = 86.43