Finding the Fourth Proportional to 315,446.91, 435,472.82 and 194,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   315,446.91 : 435,472.82 = 194,654.72 : x
2. Step 2: Convert to fraction form
   315,446.91/435,472.82 = 194,654.72/x
3. Step 3: Cross multiply
   315,446.91x = 435,472.82 × 194,654.72
4. Step 4: Simplify right side
   315,446.91x = 84,766,837,424.03
5. Step 5: Solve for x
   x = 84,766,837,424.03/315,446.91
6. Step 6: Final answer
   x = 268,719.82