Finding the Fourth Proportional to 304.37, 456.71 and 131.09

Step by Step Solution

1. Step 1: Write the proportion equation
   304.37 : 456.71 = 131.09 : x
2. Step 2: Convert to fraction form
   304.37/456.71 = 131.09/x
3. Step 3: Cross multiply
   304.37x = 456.71 × 131.09
4. Step 4: Simplify right side
   304.37x = 59,870.60
5. Step 5: Solve for x
   x = 59,870.60/304.37
6. Step 6: Final answer
   x = 196.70