Finding the Fourth Proportional to 497,061.45, 685,944.72 and 270,706.95

Step by Step Solution

1. Step 1: Write the proportion equation
   497,061.45 : 685,944.72 = 270,706.95 : x
2. Step 2: Convert to fraction form
   497,061.45/685,944.72 = 270,706.95/x
3. Step 3: Cross multiply
   497,061.45x = 685,944.72 × 270,706.95
4. Step 4: Simplify right side
   497,061.45x = 185,690,003,019.80
5. Step 5: Solve for x
   x = 185,690,003,019.80/497,061.45
6. Step 6: Final answer
   x = 373,575.55