Finding the Fourth Proportional to 427,075.43, 589,348.37 and 245,815.25

Step by Step Solution

1. Step 1: Write the proportion equation
   427,075.43 : 589,348.37 = 245,815.25 : x
2. Step 2: Convert to fraction form
   427,075.43/589,348.37 = 245,815.25/x
3. Step 3: Cross multiply
   427,075.43x = 589,348.37 × 245,815.25
4. Step 4: Simplify right side
   427,075.43x = 144,870,814,576.44
5. Step 5: Solve for x
   x = 144,870,814,576.44/427,075.43
6. Step 6: Final answer
   x = 339,215.99