Finding the Fourth Proportional to 123.29, 185.34 and 96.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123.29 : 185.34 = 96.56 : x
2. Step 2: Convert to fraction form
   123.29/185.34 = 96.56/x
3. Step 3: Cross multiply
   123.29x = 185.34 × 96.56
4. Step 4: Simplify right side
   123.29x = 17,895.50
5. Step 5: Solve for x
   x = 17,895.50/123.29
6. Step 6: Final answer
   x = 145.16