Finding the Fourth Proportional to 615,105.59, 848,846.33 and 360,456.57

Step by Step Solution

1. Step 1: Write the proportion equation
   615,105.59 : 848,846.33 = 360,456.57 : x
2. Step 2: Convert to fraction form
   615,105.59/848,846.33 = 360,456.57/x
3. Step 3: Cross multiply
   615,105.59x = 848,846.33 × 360,456.57
4. Step 4: Simplify right side
   615,105.59x = 305,972,234,766.61
5. Step 5: Solve for x
   x = 305,972,234,766.61/615,105.59
6. Step 6: Final answer
   x = 497,430.43