Finding the Fourth Proportional to 131.21, 196.89 and 59.06

Step by Step Solution

1. Step 1: Write the proportion equation
   131.21 : 196.89 = 59.06 : x
2. Step 2: Convert to fraction form
   131.21/196.89 = 59.06/x
3. Step 3: Cross multiply
   131.21x = 196.89 × 59.06
4. Step 4: Simplify right side
   131.21x = 11,628.59
5. Step 5: Solve for x
   x = 11,628.59/131.21
6. Step 6: Final answer
   x = 88.63