Finding the Fourth Proportional to 511,510.52, 705,868.33 and 282,077.48

Step by Step Solution

1. Step 1: Write the proportion equation
   511,510.52 : 705,868.33 = 282,077.48 : x
2. Step 2: Convert to fraction form
   511,510.52/705,868.33 = 282,077.48/x
3. Step 3: Cross multiply
   511,510.52x = 705,868.33 × 282,077.48
4. Step 4: Simplify right side
   511,510.52x = 199,109,554,798.48
5. Step 5: Solve for x
   x = 199,109,554,798.48/511,510.52
6. Step 6: Final answer
   x = 389,257.99