Finding the Fourth Proportional to 356,709.72, 492,259.30 and 195,561.31

Step by Step Solution

1. Step 1: Write the proportion equation
   356,709.72 : 492,259.30 = 195,561.31 : x
2. Step 2: Convert to fraction form
   356,709.72/492,259.30 = 195,561.31/x
3. Step 3: Cross multiply
   356,709.72x = 492,259.30 × 195,561.31
4. Step 4: Simplify right side
   356,709.72x = 96,266,874,705.61
5. Step 5: Solve for x
   x = 96,266,874,705.61/356,709.72
6. Step 6: Final answer
   x = 269,874.55