Finding the Fourth Proportional to 412,443.82, 569,179.20 and 231,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   412,443.82 : 569,179.20 = 231,196.06 : x
2. Step 2: Convert to fraction form
   412,443.82/569,179.20 = 231,196.06/x
3. Step 3: Cross multiply
   412,443.82x = 569,179.20 × 231,196.06
4. Step 4: Simplify right side
   412,443.82x = 131,591,988,473.95
5. Step 5: Solve for x
   x = 131,591,988,473.95/412,443.82
6. Step 6: Final answer
   x = 319,054.33