Finding the Fourth Proportional to 356,788.29, 492,626.15 and 229,685.31

Step by Step Solution

1. Step 1: Write the proportion equation
   356,788.29 : 492,626.15 = 229,685.31 : x
2. Step 2: Convert to fraction form
   356,788.29/492,626.15 = 229,685.31/x
3. Step 3: Cross multiply
   356,788.29x = 492,626.15 × 229,685.31
4. Step 4: Simplify right side
   356,788.29x = 113,148,988,828.43
5. Step 5: Solve for x
   x = 113,148,988,828.43/356,788.29
6. Step 6: Final answer
   x = 317,132.01