Finding the Fourth Proportional to 208,839.94, 288,273.94 and 123,957

Step by Step Solution

1. Step 1: Write the proportion equation
   208,839.94 : 288,273.94 = 123,957 : x
2. Step 2: Convert to fraction form
   208,839.94/288,273.94 = 123,957/x
3. Step 3: Cross multiply
   208,839.94x = 288,273.94 × 123,957
4. Step 4: Simplify right side
   208,839.94x = 35,733,572,470.69
5. Step 5: Solve for x
   x = 35,733,572,470.69/208,839.94
6. Step 6: Final answer
   x = 171,105.07