Finding the Fourth Proportional to 91.83, 137.82 and 37.73

Step by Step Solution

1. Step 1: Write the proportion equation
   91.83 : 137.82 = 37.73 : x
2. Step 2: Convert to fraction form
   91.83/137.82 = 37.73/x
3. Step 3: Cross multiply
   91.83x = 137.82 × 37.73
4. Step 4: Simplify right side
   91.83x = 5,200.43
5. Step 5: Solve for x
   x = 5,200.43/91.83
6. Step 6: Final answer
   x = 56.63