Finding the Fourth Proportional to 131.06, 196.53 and 61.63

Step by Step Solution

1. Step 1: Write the proportion equation
   131.06 : 196.53 = 61.63 : x
2. Step 2: Convert to fraction form
   131.06/196.53 = 61.63/x
3. Step 3: Cross multiply
   131.06x = 196.53 × 61.63
4. Step 4: Simplify right side
   131.06x = 12,112.03
5. Step 5: Solve for x
   x = 12,112.03/131.06
6. Step 6: Final answer
   x = 92.41