Finding the Fourth Proportional to 82.90, 114.42 and 51.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82.90 : 114.42 = 51.83 : x
2. Step 2: Convert to fraction form
   82.90/114.42 = 51.83/x
3. Step 3: Cross multiply
   82.90x = 114.42 × 51.83
4. Step 4: Simplify right side
   82.90x = 5,930.39
5. Step 5: Solve for x
   x = 5,930.39/82.90
6. Step 6: Final answer
   x = 71.54