Finding the Fourth Proportional to 92.82, 139.20 and 38.00

Step by Step Solution

1. Step 1: Write the proportion equation
   92.82 : 139.20 = 38.00 : x
2. Step 2: Convert to fraction form
   92.82/139.20 = 38.00/x
3. Step 3: Cross multiply
   92.82x = 139.20 × 38.00
4. Step 4: Simplify right side
   92.82x = 5,289.05
5. Step 5: Solve for x
   x = 5,289.05/92.82
6. Step 6: Final answer
   x = 56.98