Finding the Fourth Proportional to 82.15, 123.19 and 59.25

Step by Step Solution

1. Step 1: Write the proportion equation
   82.15 : 123.19 = 59.25 : x
2. Step 2: Convert to fraction form
   82.15/123.19 = 59.25/x
3. Step 3: Cross multiply
   82.15x = 123.19 × 59.25
4. Step 4: Simplify right side
   82.15x = 7,299.01
5. Step 5: Solve for x
   x = 7,299.01/82.15
6. Step 6: Final answer
   x = 88.85