Finding the Fourth Proportional to 200,978, 277,350.72 and 125,570.24

Step by Step Solution

1. Step 1: Write the proportion equation
   200,978 : 277,350.72 = 125,570.24 : x
2. Step 2: Convert to fraction form
   200,978/277,350.72 = 125,570.24/x
3. Step 3: Cross multiply
   200,978x = 277,350.72 × 125,570.24
4. Step 4: Simplify right side
   200,978x = 34,826,996,474.57
5. Step 5: Solve for x
   x = 34,826,996,474.57/200,978
6. Step 6: Final answer
   x = 173,287.61