Finding the Fourth Proportional to 321,271.81, 443,366.54 and 193,922.53

Step by Step Solution

1. Step 1: Write the proportion equation
   321,271.81 : 443,366.54 = 193,922.53 : x
2. Step 2: Convert to fraction form
   321,271.81/443,366.54 = 193,922.53/x
3. Step 3: Cross multiply
   321,271.81x = 443,366.54 × 193,922.53
4. Step 4: Simplify right side
   321,271.81x = 85,978,760,184.53
5. Step 5: Solve for x
   x = 85,978,760,184.53/321,271.81
6. Step 6: Final answer
   x = 267,619.99