Finding the Fourth Proportional to 423,826.83, 635,494.01 and 170,900.28

Step by Step Solution

1. Step 1: Write the proportion equation
   423,826.83 : 635,494.01 = 170,900.28 : x
2. Step 2: Convert to fraction form
   423,826.83/635,494.01 = 170,900.28/x
3. Step 3: Cross multiply
   423,826.83x = 635,494.01 × 170,900.28
4. Step 4: Simplify right side
   423,826.83x = 108,606,103,392.82
5. Step 5: Solve for x
   x = 108,606,103,392.82/423,826.83
6. Step 6: Final answer
   x = 256,251.13