Finding the Fourth Proportional to 436,976.47, 603,038.69 and 245,996.56

Step by Step Solution

1. Step 1: Write the proportion equation
   436,976.47 : 603,038.69 = 245,996.56 : x
2. Step 2: Convert to fraction form
   436,976.47/603,038.69 = 245,996.56/x
3. Step 3: Cross multiply
   436,976.47x = 603,038.69 × 245,996.56
4. Step 4: Simplify right side
   436,976.47x = 148,345,443,286.91
5. Step 5: Solve for x
   x = 148,345,443,286.91/436,976.47
6. Step 6: Final answer
   x = 339,481.54