Finding the Fourth Proportional to 72.55, 108.83 and 46.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72.55 : 108.83 = 46.54 : x
2. Step 2: Convert to fraction form
   72.55/108.83 = 46.54/x
3. Step 3: Cross multiply
   72.55x = 108.83 × 46.54
4. Step 4: Simplify right side
   72.55x = 5,064.95
5. Step 5: Solve for x
   x = 5,064.95/72.55
6. Step 6: Final answer
   x = 69.81