Finding the Fourth Proportional to 82.84, 124.12 and 46.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82.84 : 124.12 = 46.72 : x
2. Step 2: Convert to fraction form
   82.84/124.12 = 46.72/x
3. Step 3: Cross multiply
   82.84x = 124.12 × 46.72
4. Step 4: Simplify right side
   82.84x = 5,798.89
5. Step 5: Solve for x
   x = 5,798.89/82.84
6. Step 6: Final answer
   x = 70.00