Finding the Fourth Proportional to 131.04, 196.34 and 100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131.04 : 196.34 = 100.56 : x
2. Step 2: Convert to fraction form
   131.04/196.34 = 100.56/x
3. Step 3: Cross multiply
   131.04x = 196.34 × 100.56
4. Step 4: Simplify right side
   131.04x = 19,743.95
5. Step 5: Solve for x
   x = 19,743.95/131.04
6. Step 6: Final answer
   x = 150.67