Finding the Fourth Proportional to 204,016.48, 281,529 and 123,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   204,016.48 : 281,529 = 123,488.72 : x
2. Step 2: Convert to fraction form
   204,016.48/281,529 = 123,488.72/x
3. Step 3: Cross multiply
   204,016.48x = 281,529 × 123,488.72
4. Step 4: Simplify right side
   204,016.48x = 34,765,655,852.88
5. Step 5: Solve for x
   x = 34,765,655,852.88/204,016.48
6. Step 6: Final answer
   x = 170,406.12