Finding the Fourth Proportional to 355,499.71, 490,589.56 and 194,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   355,499.71 : 490,589.56 = 194,354.72 : x
2. Step 2: Convert to fraction form
   355,499.71/490,589.56 = 194,354.72/x
3. Step 3: Cross multiply
   355,499.71x = 490,589.56 × 194,354.72
4. Step 4: Simplify right side
   355,499.71x = 95,348,393,629.89
5. Step 5: Solve for x
   x = 95,348,393,629.89/355,499.71
6. Step 6: Final answer
   x = 268,209.49