Finding the Fourth Proportional to 90.83, 136.23 and 36.73

Step by Step Solution

1. Step 1: Write the proportion equation
   90.83 : 136.23 = 36.73 : x
2. Step 2: Convert to fraction form
   90.83/136.23 = 36.73/x
3. Step 3: Cross multiply
   90.83x = 136.23 × 36.73
4. Step 4: Simplify right side
   90.83x = 5,002.86
5. Step 5: Solve for x
   x = 5,002.86/90.83
6. Step 6: Final answer
   x = 55.08