Finding the Fourth Proportional to 131.51, 196.98 and 67.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131.51 : 196.98 = 67.25 : x
2. Step 2: Convert to fraction form
   131.51/196.98 = 67.25/x
3. Step 3: Cross multiply
   131.51x = 196.98 × 67.25
4. Step 4: Simplify right side
   131.51x = 13,246.91
5. Step 5: Solve for x
   x = 13,246.91/131.51
6. Step 6: Final answer
   x = 100.73