Finding the Fourth Proportional to 427,017.92, 589,343.33 and 245,726.15

Step by Step Solution

1. Step 1: Write the proportion equation
   427,017.92 : 589,343.33 = 245,726.15 : x
2. Step 2: Convert to fraction form
   427,017.92/589,343.33 = 245,726.15/x
3. Step 3: Cross multiply
   427,017.92x = 589,343.33 × 245,726.15
4. Step 4: Simplify right side
   427,017.92x = 144,817,066,280.45
5. Step 5: Solve for x
   x = 144,817,066,280.45/427,017.92
6. Step 6: Final answer
   x = 339,135.81