Finding the Fourth Proportional to 492,073.34, 679,111.37 and 301,212.86

Step by Step Solution

1. Step 1: Write the proportion equation
   492,073.34 : 679,111.37 = 301,212.86 : x
2. Step 2: Convert to fraction form
   492,073.34/679,111.37 = 301,212.86/x
3. Step 3: Cross multiply
   492,073.34x = 679,111.37 × 301,212.86
4. Step 4: Simplify right side
   492,073.34x = 204,557,078,016.22
5. Step 5: Solve for x
   x = 204,557,078,016.22/492,073.34
6. Step 6: Final answer
   x = 415,704.45