Finding the Fourth Proportional to 82.22, 123.18 and 61.94

Step by Step Solution

1. Step 1: Write the proportion equation
   82.22 : 123.18 = 61.94 : x
2. Step 2: Convert to fraction form
   82.22/123.18 = 61.94/x
3. Step 3: Cross multiply
   82.22x = 123.18 × 61.94
4. Step 4: Simplify right side
   82.22x = 7,629.77
5. Step 5: Solve for x
   x = 7,629.77/82.22
6. Step 6: Final answer
   x = 92.80