Finding the Fourth Proportional to 91.35, 137.06 and 37.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91.35 : 137.06 = 37.25 : x
2. Step 2: Convert to fraction form
   91.35/137.06 = 37.25/x
3. Step 3: Cross multiply
   91.35x = 137.06 × 37.25
4. Step 4: Simplify right side
   91.35x = 5,105.49
5. Step 5: Solve for x
   x = 5,105.49/91.35
6. Step 6: Final answer
   x = 55.89