Finding the Fourth Proportional to 82.83, 114.31 and 53.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82.83 : 114.31 = 53.31 : x
2. Step 2: Convert to fraction form
   82.83/114.31 = 53.31/x
3. Step 3: Cross multiply
   82.83x = 114.31 × 53.31
4. Step 4: Simplify right side
   82.83x = 6,094.00
5. Step 5: Solve for x
   x = 6,094.00/82.83
6. Step 6: Final answer
   x = 73.58