Finding the Fourth Proportional to 547,300.18, 820,944.60 and 173,323.18

Step by Step Solution

1. Step 1: Write the proportion equation
   547,300.18 : 820,944.60 = 173,323.18 : x
2. Step 2: Convert to fraction form
   547,300.18/820,944.60 = 173,323.18/x
3. Step 3: Cross multiply
   547,300.18x = 820,944.60 × 173,323.18
4. Step 4: Simplify right side
   547,300.18x = 142,288,728,675.83
5. Step 5: Solve for x
   x = 142,288,728,675.83/547,300.18
6. Step 6: Final answer
   x = 259,982.97