Finding the Fourth Proportional to 424,681.62, 586,062.72 and 243,404.34

Step by Step Solution

1. Step 1: Write the proportion equation
   424,681.62 : 586,062.72 = 243,404.34 : x
2. Step 2: Convert to fraction form
   424,681.62/586,062.72 = 243,404.34/x
3. Step 3: Cross multiply
   424,681.62x = 586,062.72 × 243,404.34
4. Step 4: Simplify right side
   424,681.62x = 142,650,209,560.21
5. Step 5: Solve for x
   x = 142,650,209,560.21/424,681.62
6. Step 6: Final answer
   x = 335,899.18