Finding the Fourth Proportional to 91.45, 137.22 and 37.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91.45 : 137.22 = 37.34 : x
2. Step 2: Convert to fraction form
   91.45/137.22 = 37.34/x
3. Step 3: Cross multiply
   91.45x = 137.22 × 37.34
4. Step 4: Simplify right side
   91.45x = 5,123.20
5. Step 5: Solve for x
   x = 5,123.20/91.45
6. Step 6: Final answer
   x = 56.02