Finding the Fourth Proportional to 209,662, 289,340.04 and 120,238

Step by Step Solution

1. Step 1: Write the proportion equation
   209,662 : 289,340.04 = 120,238 : x
2. Step 2: Convert to fraction form
   209,662/289,340.04 = 120,238/x
3. Step 3: Cross multiply
   209,662x = 289,340.04 × 120,238
4. Step 4: Simplify right side
   209,662x = 34,789,667,729.52
5. Step 5: Solve for x
   x = 34,789,667,729.52/209,662
6. Step 6: Final answer
   x = 165,932.16