Finding the Fourth Proportional to 404,890.10, 607,594.35 and 236,410.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,890.10 : 607,594.35 = 236,410.10 : x
2. Step 2: Convert to fraction form
   404,890.10/607,594.35 = 236,410.10/x
3. Step 3: Cross multiply
   404,890.10x = 607,594.35 × 236,410.10
4. Step 4: Simplify right side
   404,890.10x = 143,641,441,042.94
5. Step 5: Solve for x
   x = 143,641,441,042.94/404,890.10
6. Step 6: Final answer
   x = 354,766.49