Finding the Fourth Proportional to 426,928.27, 589,144.59 and 245,698.42

Step by Step Solution

1. Step 1: Write the proportion equation
   426,928.27 : 589,144.59 = 245,698.42 : x
2. Step 2: Convert to fraction form
   426,928.27/589,144.59 = 245,698.42/x
3. Step 3: Cross multiply
   426,928.27x = 589,144.59 × 245,698.42
4. Step 4: Simplify right side
   426,928.27x = 144,751,894,914.55
5. Step 5: Solve for x
   x = 144,751,894,914.55/426,928.27
6. Step 6: Final answer
   x = 339,054.37