Finding the Fourth Proportional to 462,147.96, 637,654.89 and 268,440.57

Step by Step Solution

1. Step 1: Write the proportion equation
   462,147.96 : 637,654.89 = 268,440.57 : x
2. Step 2: Convert to fraction form
   462,147.96/637,654.89 = 268,440.57/x
3. Step 3: Cross multiply
   462,147.96x = 637,654.89 × 268,440.57
4. Step 4: Simplify right side
   462,147.96x = 171,172,442,134.89
5. Step 5: Solve for x
   x = 171,172,442,134.89/462,147.96
6. Step 6: Final answer
   x = 370,384.50