Finding the Fourth Proportional to 91.56, 137.33 and 37.45

Step by Step Solution

1. Step 1: Write the proportion equation
   91.56 : 137.33 = 37.45 : x
2. Step 2: Convert to fraction form
   91.56/137.33 = 37.45/x
3. Step 3: Cross multiply
   91.56x = 137.33 × 37.45
4. Step 4: Simplify right side
   91.56x = 5,142.57
5. Step 5: Solve for x
   x = 5,142.57/91.56
6. Step 6: Final answer
   x = 56.17