Finding the Fourth Proportional to 92.89, 139.25 and 38.82

Step by Step Solution

1. Step 1: Write the proportion equation
   92.89 : 139.25 = 38.82 : x
2. Step 2: Convert to fraction form
   92.89/139.25 = 38.82/x
3. Step 3: Cross multiply
   92.89x = 139.25 × 38.82
4. Step 4: Simplify right side
   92.89x = 5,405.69
5. Step 5: Solve for x
   x = 5,405.69/92.89
6. Step 6: Final answer
   x = 58.19