Finding the Fourth Proportional to 476,404.82, 657,439.77 and 261,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   476,404.82 : 657,439.77 = 261,558.72 : x
2. Step 2: Convert to fraction form
   476,404.82/657,439.77 = 261,558.72/x
3. Step 3: Cross multiply
   476,404.82x = 657,439.77 × 261,558.72
4. Step 4: Simplify right side
   476,404.82x = 171,959,105,699.14
5. Step 5: Solve for x
   x = 171,959,105,699.14/476,404.82
6. Step 6: Final answer
   x = 360,951.65