Finding the Fourth Proportional to 82.50, 114.15 and 70.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82.50 : 114.15 = 70.83 : x
2. Step 2: Convert to fraction form
   82.50/114.15 = 70.83/x
3. Step 3: Cross multiply
   82.50x = 114.15 × 70.83
4. Step 4: Simplify right side
   82.50x = 8,085.24
5. Step 5: Solve for x
   x = 8,085.24/82.50
6. Step 6: Final answer
   x = 98.00