Finding the Fourth Proportional to 355,150.27, 490,119.15 and 194,020.30

Step by Step Solution

1. Step 1: Write the proportion equation
   355,150.27 : 490,119.15 = 194,020.30 : x
2. Step 2: Convert to fraction form
   355,150.27/490,119.15 = 194,020.30/x
3. Step 3: Cross multiply
   355,150.27x = 490,119.15 × 194,020.30
4. Step 4: Simplify right side
   355,150.27x = 95,093,064,518.75
5. Step 5: Solve for x
   x = 95,093,064,518.75/355,150.27
6. Step 6: Final answer
   x = 267,754.45