Finding the Fourth Proportional to 131.29, 196.94 and 39.98

Step by Step Solution

1. Step 1: Write the proportion equation
   131.29 : 196.94 = 39.98 : x
2. Step 2: Convert to fraction form
   131.29/196.94 = 39.98/x
3. Step 3: Cross multiply
   131.29x = 196.94 × 39.98
4. Step 4: Simplify right side
   131.29x = 7,874.25
5. Step 5: Solve for x
   x = 7,874.25/131.29
6. Step 6: Final answer
   x = 59.98