Finding the Fourth Proportional to 404,209.06, 557,847.94 and 302,057.15

Step by Step Solution

1. Step 1: Write the proportion equation
   404,209.06 : 557,847.94 = 302,057.15 : x
2. Step 2: Convert to fraction form
   404,209.06/557,847.94 = 302,057.15/x
3. Step 3: Cross multiply
   404,209.06x = 557,847.94 × 302,057.15
4. Step 4: Simplify right side
   404,209.06x = 168,501,958,889.77
5. Step 5: Solve for x
   x = 168,501,958,889.77/404,209.06
6. Step 6: Final answer
   x = 416,868.34