Finding the Fourth Proportional to 264,429.78, 396,307.71 and 123,878.58

Step by Step Solution

1. Step 1: Write the proportion equation
   264,429.78 : 396,307.71 = 123,878.58 : x
2. Step 2: Convert to fraction form
   264,429.78/396,307.71 = 123,878.58/x
3. Step 3: Cross multiply
   264,429.78x = 396,307.71 × 123,878.58
4. Step 4: Simplify right side
   264,429.78x = 49,094,036,357.85
5. Step 5: Solve for x
   x = 49,094,036,357.85/264,429.78
6. Step 6: Final answer
   x = 185,660.01