Finding the Fourth Proportional to 492,105.57, 674,676.70 and 483,137.52

Step by Step Solution

1. Step 1: Write the proportion equation
   492,105.57 : 674,676.70 = 483,137.52 : x
2. Step 2: Convert to fraction form
   492,105.57/674,676.70 = 483,137.52/x
3. Step 3: Cross multiply
   492,105.57x = 674,676.70 × 483,137.52
4. Step 4: Simplify right side
   492,105.57x = 325,961,627,639.78
5. Step 5: Solve for x
   x = 325,961,627,639.78/492,105.57
6. Step 6: Final answer
   x = 662,381.50