Finding the Fourth Proportional to 404,498.10, 606,965.85 and 167,864.70

Step by Step Solution

1. Step 1: Write the proportion equation
   404,498.10 : 606,965.85 = 167,864.70 : x
2. Step 2: Convert to fraction form
   404,498.10/606,965.85 = 167,864.70/x
3. Step 3: Cross multiply
   404,498.10x = 606,965.85 × 167,864.70
4. Step 4: Simplify right side
   404,498.10x = 101,888,140,320.50
5. Step 5: Solve for x
   x = 101,888,140,320.50/404,498.10
6. Step 6: Final answer
   x = 251,887.81