Finding the Fourth Proportional to 72.83, 100.49 and 52.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72.83 : 100.49 = 52.14 : x
2. Step 2: Convert to fraction form
   72.83/100.49 = 52.14/x
3. Step 3: Cross multiply
   72.83x = 100.49 × 52.14
4. Step 4: Simplify right side
   72.83x = 5,239.29
5. Step 5: Solve for x
   x = 5,239.29/72.83
6. Step 6: Final answer
   x = 71.94