Finding the Fourth Proportional to 244,978.72, 338,044.48 and 137,560.48

Step by Step Solution

1. Step 1: Write the proportion equation
   244,978.72 : 338,044.48 = 137,560.48 : x
2. Step 2: Convert to fraction form
   244,978.72/338,044.48 = 137,560.48/x
3. Step 3: Cross multiply
   244,978.72x = 338,044.48 × 137,560.48
4. Step 4: Simplify right side
   244,978.72x = 46,501,560,930.15
5. Step 5: Solve for x
   x = 46,501,560,930.15/244,978.72
6. Step 6: Final answer
   x = 189,818.78