Finding the Fourth Proportional to 297,016.34, 444,675.42 and 278,162.17

Step by Step Solution

1. Step 1: Write the proportion equation
   297,016.34 : 444,675.42 = 278,162.17 : x
2. Step 2: Convert to fraction form
   297,016.34/444,675.42 = 278,162.17/x
3. Step 3: Cross multiply
   297,016.34x = 444,675.42 × 278,162.17
4. Step 4: Simplify right side
   297,016.34x = 123,691,878,661.17
5. Step 5: Solve for x
   x = 123,691,878,661.17/297,016.34
6. Step 6: Final answer
   x = 416,448.07