Finding the Fourth Proportional to 359,769.97, 539,994.03 and 264,710.34

Step by Step Solution

1. Step 1: Write the proportion equation
   359,769.97 : 539,994.03 = 264,710.34 : x
2. Step 2: Convert to fraction form
   359,769.97/539,994.03 = 264,710.34/x
3. Step 3: Cross multiply
   359,769.97x = 539,994.03 × 264,710.34
4. Step 4: Simplify right side
   359,769.97x = 142,942,003,279.27
5. Step 5: Solve for x
   x = 142,942,003,279.27/359,769.97
6. Step 6: Final answer
   x = 397,314.99