Finding the Fourth Proportional to 91.64, 137.37 and 37.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91.64 : 137.37 = 37.50 : x
2. Step 2: Convert to fraction form
   91.64/137.37 = 37.50/x
3. Step 3: Cross multiply
   91.64x = 137.37 × 37.50
4. Step 4: Simplify right side
   91.64x = 5,151.38
5. Step 5: Solve for x
   x = 5,151.38/91.64
6. Step 6: Final answer
   x = 56.22