Finding the Fourth Proportional to 82.35, 123.21 and 46.17

Step by Step Solution

1. Step 1: Write the proportion equation
   82.35 : 123.21 = 46.17 : x
2. Step 2: Convert to fraction form
   82.35/123.21 = 46.17/x
3. Step 3: Cross multiply
   82.35x = 123.21 × 46.17
4. Step 4: Simplify right side
   82.35x = 5,688.61
5. Step 5: Solve for x
   x = 5,688.61/82.35
6. Step 6: Final answer
   x = 69.08