Finding the Fourth Proportional to 209,101.96, 288,566.58 and 123,067

Step by Step Solution

1. Step 1: Write the proportion equation
   209,101.96 : 288,566.58 = 123,067 : x
2. Step 2: Convert to fraction form
   209,101.96/288,566.58 = 123,067/x
3. Step 3: Cross multiply
   209,101.96x = 288,566.58 × 123,067
4. Step 4: Simplify right side
   209,101.96x = 35,513,023,300.86
5. Step 5: Solve for x
   x = 35,513,023,300.86/209,101.96
6. Step 6: Final answer
   x = 169,835.92