Finding the Fourth Proportional to 485,367.89, 728,379.89 and 169,827.53

Step by Step Solution

1. Step 1: Write the proportion equation
   485,367.89 : 728,379.89 = 169,827.53 : x
2. Step 2: Convert to fraction form
   485,367.89/728,379.89 = 169,827.53/x
3. Step 3: Cross multiply
   485,367.89x = 728,379.89 × 169,827.53
4. Step 4: Simplify right side
   485,367.89x = 123,698,956,771.23
5. Step 5: Solve for x
   x = 123,698,956,771.23/485,367.89
6. Step 6: Final answer
   x = 254,856.08