Finding the Fourth Proportional to 559,758.15, 772,590.83 and 355,769.37

Step by Step Solution

1. Step 1: Write the proportion equation
   559,758.15 : 772,590.83 = 355,769.37 : x
2. Step 2: Convert to fraction form
   559,758.15/772,590.83 = 355,769.37/x
3. Step 3: Cross multiply
   559,758.15x = 772,590.83 × 355,769.37
4. Step 4: Simplify right side
   559,758.15x = 274,864,151,078.03
5. Step 5: Solve for x
   x = 274,864,151,078.03/559,758.15
6. Step 6: Final answer
   x = 491,040.91