Finding the Fourth Proportional to 61.09, 91.42 and 38.27

Step by Step Solution

1. Step 1: Write the proportion equation
   61.09 : 91.42 = 38.27 : x
2. Step 2: Convert to fraction form
   61.09/91.42 = 38.27/x
3. Step 3: Cross multiply
   61.09x = 91.42 × 38.27
4. Step 4: Simplify right side
   61.09x = 3,498.78
5. Step 5: Solve for x
   x = 3,498.78/61.09
6. Step 6: Final answer
   x = 57.27