Finding the Fourth Proportional to 91.50, 137.28 and 37.37

Step by Step Solution

1. Step 1: Write the proportion equation
   91.50 : 137.28 = 37.37 : x
2. Step 2: Convert to fraction form
   91.50/137.28 = 37.37/x
3. Step 3: Cross multiply
   91.50x = 137.28 × 37.37
4. Step 4: Simplify right side
   91.50x = 5,129.47
5. Step 5: Solve for x
   x = 5,129.47/91.50
6. Step 6: Final answer
   x = 56.06