Finding the Fourth Proportional to 412,443.73, 569,171.58 and 231,155.61

Step by Step Solution

1. Step 1: Write the proportion equation
   412,443.73 : 569,171.58 = 231,155.61 : x
2. Step 2: Convert to fraction form
   412,443.73/569,171.58 = 231,155.61/x
3. Step 3: Cross multiply
   412,443.73x = 569,171.58 × 231,155.61
4. Step 4: Simplify right side
   412,443.73x = 131,567,203,769.56
5. Step 5: Solve for x
   x = 131,567,203,769.56/412,443.73
6. Step 6: Final answer
   x = 318,994.31