Finding the Fourth Proportional to 244,870.86, 337,903.25 and 137,420.13

Step by Step Solution

1. Step 1: Write the proportion equation
   244,870.86 : 337,903.25 = 137,420.13 : x
2. Step 2: Convert to fraction form
   244,870.86/337,903.25 = 137,420.13/x
3. Step 3: Cross multiply
   244,870.86x = 337,903.25 × 137,420.13
4. Step 4: Simplify right side
   244,870.86x = 46,434,707,855.32
5. Step 5: Solve for x
   x = 46,434,707,855.32/244,870.86
6. Step 6: Final answer
   x = 189,629.37