Finding the Fourth Proportional to 131.02, 196.48 and 53.93

Step by Step Solution

1. Step 1: Write the proportion equation
   131.02 : 196.48 = 53.93 : x
2. Step 2: Convert to fraction form
   131.02/196.48 = 53.93/x
3. Step 3: Cross multiply
   131.02x = 196.48 × 53.93
4. Step 4: Simplify right side
   131.02x = 10,596.42
5. Step 5: Solve for x
   x = 10,596.42/131.02
6. Step 6: Final answer
   x = 80.88