Finding the Fourth Proportional to 131.04, 196.59 and 53.98

Step by Step Solution

1. Step 1: Write the proportion equation
   131.04 : 196.59 = 53.98 : x
2. Step 2: Convert to fraction form
   131.04/196.59 = 53.98/x
3. Step 3: Cross multiply
   131.04x = 196.59 × 53.98
4. Step 4: Simplify right side
   131.04x = 10,612.74
5. Step 5: Solve for x
   x = 10,612.74/131.04
6. Step 6: Final answer
   x = 80.99