Finding the Fourth Proportional to 118.31, 162.37 and 107.33

Step by Step Solution

1. Step 1: Write the proportion equation
   118.31 : 162.37 = 107.33 : x
2. Step 2: Convert to fraction form
   118.31/162.37 = 107.33/x
3. Step 3: Cross multiply
   118.31x = 162.37 × 107.33
4. Step 4: Simplify right side
   118.31x = 17,427.17
5. Step 5: Solve for x
   x = 17,427.17/118.31
6. Step 6: Final answer
   x = 147.30