Finding the Fourth Proportional to 117.82, 162.59 and 65.36

Step by Step Solution

1. Step 1: Write the proportion equation
   117.82 : 162.59 = 65.36 : x
2. Step 2: Convert to fraction form
   117.82/162.59 = 65.36/x
3. Step 3: Cross multiply
   117.82x = 162.59 × 65.36
4. Step 4: Simplify right side
   117.82x = 10,627.31
5. Step 5: Solve for x
   x = 10,627.31/117.82
6. Step 6: Final answer
   x = 90.20