Finding the Fourth Proportional to 613,542.59, 846,680.69 and 355,454.72

Step by Step Solution

1. Step 1: Write the proportion equation
   613,542.59 : 846,680.69 = 355,454.72 : x
2. Step 2: Convert to fraction form
   613,542.59/846,680.69 = 355,454.72/x
3. Step 3: Cross multiply
   613,542.59x = 846,680.69 × 355,454.72
4. Step 4: Simplify right side
   613,542.59x = 300,956,641,582.68
5. Step 5: Solve for x
   x = 300,956,641,582.68/613,542.59
6. Step 6: Final answer
   x = 490,522.82