Finding the Fourth Proportional to 131.24, 196.91 and 59.15

Step by Step Solution

1. Step 1: Write the proportion equation
   131.24 : 196.91 = 59.15 : x
2. Step 2: Convert to fraction form
   131.24/196.91 = 59.15/x
3. Step 3: Cross multiply
   131.24x = 196.91 × 59.15
4. Step 4: Simplify right side
   131.24x = 11,647.23
5. Step 5: Solve for x
   x = 11,647.23/131.24
6. Step 6: Final answer
   x = 88.75