Finding the Fourth Proportional to 131.35, 196.94 and 50.15

Step by Step Solution

1. Step 1: Write the proportion equation
   131.35 : 196.94 = 50.15 : x
2. Step 2: Convert to fraction form
   131.35/196.94 = 50.15/x
3. Step 3: Cross multiply
   131.35x = 196.94 × 50.15
4. Step 4: Simplify right side
   131.35x = 9,875.56
5. Step 5: Solve for x
   x = 9,875.56/131.35
6. Step 6: Final answer
   x = 75.19