Finding the Fourth Proportional to 82.00, 113.16 and 52.89

Step by Step Solution

1. Step 1: Write the proportion equation
   82.00 : 113.16 = 52.89 : x
2. Step 2: Convert to fraction form
   82.00/113.16 = 52.89/x
3. Step 3: Cross multiply
   82.00x = 113.16 × 52.89
4. Step 4: Simplify right side
   82.00x = 5,985.76
5. Step 5: Solve for x
   x = 5,985.76/82.00
6. Step 6: Final answer
   x = 72.99