Finding the Fourth Proportional to 424,125, 585,293.72 and 242,839.72

Step by Step Solution

1. Step 1: Write the proportion equation
   424,125 : 585,293.72 = 242,839.72 : x
2. Step 2: Convert to fraction form
   424,125/585,293.72 = 242,839.72/x
3. Step 3: Cross multiply
   424,125x = 585,293.72 × 242,839.72
4. Step 4: Simplify right side
   424,125x = 142,132,563,082.56
5. Step 5: Solve for x
   x = 142,132,563,082.56/424,125
6. Step 6: Final answer
   x = 335,119.51