Finding the Fourth Proportional to 82.69, 123.99 and 34.59

Step by Step Solution

1. Step 1: Write the proportion equation
   82.69 : 123.99 = 34.59 : x
2. Step 2: Convert to fraction form
   82.69/123.99 = 34.59/x
3. Step 3: Cross multiply
   82.69x = 123.99 × 34.59
4. Step 4: Simplify right side
   82.69x = 4,288.19
5. Step 5: Solve for x
   x = 4,288.19/82.69
6. Step 6: Final answer
   x = 51.86