Finding the Fourth Proportional to 72.93, 100.71 and 49.67

Step by Step Solution

1. Step 1: Write the proportion equation
   72.93 : 100.71 = 49.67 : x
2. Step 2: Convert to fraction form
   72.93/100.71 = 49.67/x
3. Step 3: Cross multiply
   72.93x = 100.71 × 49.67
4. Step 4: Simplify right side
   72.93x = 5,001.89
5. Step 5: Solve for x
   x = 5,001.89/72.93
6. Step 6: Final answer
   x = 68.58