Finding the Fourth Proportional to 619,075, 854,323.50 and 364,582.72

Step by Step Solution

1. Step 1: Write the proportion equation
   619,075 : 854,323.50 = 364,582.72 : x
2. Step 2: Convert to fraction form
   619,075/854,323.50 = 364,582.72/x
3. Step 3: Cross multiply
   619,075x = 854,323.50 × 364,582.72
4. Step 4: Simplify right side
   619,075x = 311,471,585,389.92
5. Step 5: Solve for x
   x = 311,471,585,389.92/619,075
6. Step 6: Final answer
   x = 503,124.15