Finding the Fourth Proportional to 131.82, 181.92 and 73.61

Step by Step Solution

1. Step 1: Write the proportion equation
   131.82 : 181.92 = 73.61 : x
2. Step 2: Convert to fraction form
   131.82/181.92 = 73.61/x
3. Step 3: Cross multiply
   131.82x = 181.92 × 73.61
4. Step 4: Simplify right side
   131.82x = 13,390.22
5. Step 5: Solve for x
   x = 13,390.22/131.82
6. Step 6: Final answer
   x = 101.58