Finding the Fourth Proportional to 404,900.65, 558,762.89 and 235,145.71

Step by Step Solution

1. Step 1: Write the proportion equation
   404,900.65 : 558,762.89 = 235,145.71 : x
2. Step 2: Convert to fraction form
   404,900.65/558,762.89 = 235,145.71/x
3. Step 3: Cross multiply
   404,900.65x = 558,762.89 × 235,145.71
4. Step 4: Simplify right side
   404,900.65x = 131,390,696,756.62
5. Step 5: Solve for x
   x = 131,390,696,756.62/404,900.65
6. Step 6: Final answer
   x = 324,501.08