Finding the Fourth Proportional to 285,142.82, 393,584.78 and 164,364.83

Step by Step Solution

1. Step 1: Write the proportion equation
   285,142.82 : 393,584.78 = 164,364.83 : x
2. Step 2: Convert to fraction form
   285,142.82/393,584.78 = 164,364.83/x
3. Step 3: Cross multiply
   285,142.82x = 393,584.78 × 164,364.83
4. Step 4: Simplify right side
   285,142.82x = 64,691,494,633.46
5. Step 5: Solve for x
   x = 64,691,494,633.46/285,142.82
6. Step 6: Final answer
   x = 226,874.01