Finding the Fourth Proportional to 67.79, 101.72 and 49.83

Step by Step Solution

1. Step 1: Write the proportion equation
   67.79 : 101.72 = 49.83 : x
2. Step 2: Convert to fraction form
   67.79/101.72 = 49.83/x
3. Step 3: Cross multiply
   67.79x = 101.72 × 49.83
4. Step 4: Simplify right side
   67.79x = 5,068.71
5. Step 5: Solve for x
   x = 5,068.71/67.79
6. Step 6: Final answer
   x = 74.77