Finding the Fourth Proportional to 321,054.76, 443,058.83 and 193,705.75

Step by Step Solution

1. Step 1: Write the proportion equation
   321,054.76 : 443,058.83 = 193,705.75 : x
2. Step 2: Convert to fraction form
   321,054.76/443,058.83 = 193,705.75/x
3. Step 3: Cross multiply
   321,054.76x = 443,058.83 × 193,705.75
4. Step 4: Simplify right side
   321,054.76x = 85,823,042,959.27
5. Step 5: Solve for x
   x = 85,823,042,959.27/321,054.76
6. Step 6: Final answer
   x = 267,315.90