Finding the Fourth Proportional to 404,870.52, 606,977.58 and 168,390.24

Step by Step Solution

1. Step 1: Write the proportion equation
   404,870.52 : 606,977.58 = 168,390.24 : x
2. Step 2: Convert to fraction form
   404,870.52/606,977.58 = 168,390.24/x
3. Step 3: Cross multiply
   404,870.52x = 606,977.58 × 168,390.24
4. Step 4: Simplify right side
   404,870.52x = 102,209,100,370.82
5. Step 5: Solve for x
   x = 102,209,100,370.82/404,870.52
6. Step 6: Final answer
   x = 252,448.86