Finding the Fourth Proportional to 91.56, 137.41 and 34.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91.56 : 137.41 = 34.56 : x
2. Step 2: Convert to fraction form
   91.56/137.41 = 34.56/x
3. Step 3: Cross multiply
   91.56x = 137.41 × 34.56
4. Step 4: Simplify right side
   91.56x = 4,748.89
5. Step 5: Solve for x
   x = 4,748.89/91.56
6. Step 6: Final answer
   x = 51.87