Finding the Fourth Proportional to 117.82, 162.52 and 99.37

Step by Step Solution

1. Step 1: Write the proportion equation
   117.82 : 162.52 = 99.37 : x
2. Step 2: Convert to fraction form
   117.82/162.52 = 99.37/x
3. Step 3: Cross multiply
   117.82x = 162.52 × 99.37
4. Step 4: Simplify right side
   117.82x = 16,148.96
5. Step 5: Solve for x
   x = 16,148.96/117.82
6. Step 6: Final answer
   x = 137.07