Finding the Fourth Proportional to 73.98, 111.01 and 45.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73.98 : 111.01 = 45.50 : x
2. Step 2: Convert to fraction form
   73.98/111.01 = 45.50/x
3. Step 3: Cross multiply
   73.98x = 111.01 × 45.50
4. Step 4: Simplify right side
   73.98x = 5,050.96
5. Step 5: Solve for x
   x = 5,050.96/73.98
6. Step 6: Final answer
   x = 68.27