Finding the Fourth Proportional to 610,464.38, 842,494.12 and 355,810.10

Step by Step Solution

1. Step 1: Write the proportion equation
   610,464.38 : 842,494.12 = 355,810.10 : x
2. Step 2: Convert to fraction form
   610,464.38/842,494.12 = 355,810.10/x
3. Step 3: Cross multiply
   610,464.38x = 842,494.12 × 355,810.10
4. Step 4: Simplify right side
   610,464.38x = 299,767,917,086.61
5. Step 5: Solve for x
   x = 299,767,917,086.61/610,464.38
6. Step 6: Final answer
   x = 491,048.99