Finding the Fourth Proportional to 82.98, 124.23 and 61.25

Step by Step Solution

1. Step 1: Write the proportion equation
   82.98 : 124.23 = 61.25 : x
2. Step 2: Convert to fraction form
   82.98/124.23 = 61.25/x
3. Step 3: Cross multiply
   82.98x = 124.23 × 61.25
4. Step 4: Simplify right side
   82.98x = 7,608.47
5. Step 5: Solve for x
   x = 7,608.47/82.98
6. Step 6: Final answer
   x = 91.69