Finding the Fourth Proportional to 72.92, 100.59 and 52.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72.92 : 100.59 = 52.18 : x
2. Step 2: Convert to fraction form
   72.92/100.59 = 52.18/x
3. Step 3: Cross multiply
   72.92x = 100.59 × 52.18
4. Step 4: Simplify right side
   72.92x = 5,248.79
5. Step 5: Solve for x
   x = 5,248.79/72.92
6. Step 6: Final answer
   x = 71.98