Finding the Fourth Proportional to 227.82, 341.59 and 90.82

Step by Step Solution

1. Step 1: Write the proportion equation
   227.82 : 341.59 = 90.82 : x
2. Step 2: Convert to fraction form
   227.82/341.59 = 90.82/x
3. Step 3: Cross multiply
   227.82x = 341.59 × 90.82
4. Step 4: Simplify right side
   227.82x = 31,023.20
5. Step 5: Solve for x
   x = 31,023.20/227.82
6. Step 6: Final answer
   x = 136.17