Finding the Fourth Proportional to 404,443.60, 606,446.70 and 167,810.20

Step by Step Solution

1. Step 1: Write the proportion equation
   404,443.60 : 606,446.70 = 167,810.20 : x
2. Step 2: Convert to fraction form
   404,443.60/606,446.70 = 167,810.20/x
3. Step 3: Cross multiply
   404,443.60x = 606,446.70 × 167,810.20
4. Step 4: Simplify right side
   404,443.60x = 101,767,942,016.34
5. Step 5: Solve for x
   x = 101,767,942,016.34/404,443.60
6. Step 6: Final answer
   x = 251,624.56