Finding the Fourth Proportional to 82.41, 113.72 and 51.33

Step by Step Solution

1. Step 1: Write the proportion equation
   82.41 : 113.72 = 51.33 : x
2. Step 2: Convert to fraction form
   82.41/113.72 = 51.33/x
3. Step 3: Cross multiply
   82.41x = 113.72 × 51.33
4. Step 4: Simplify right side
   82.41x = 5,837.25
5. Step 5: Solve for x
   x = 5,837.25/82.41
6. Step 6: Final answer
   x = 70.83