Finding the Fourth Proportional to 82.72, 124.06 and 46.66

Step by Step Solution

1. Step 1: Write the proportion equation
   82.72 : 124.06 = 46.66 : x
2. Step 2: Convert to fraction form
   82.72/124.06 = 46.66/x
3. Step 3: Cross multiply
   82.72x = 124.06 × 46.66
4. Step 4: Simplify right side
   82.72x = 5,788.64
5. Step 5: Solve for x
   x = 5,788.64/82.72
6. Step 6: Final answer
   x = 69.98