Finding the Fourth Proportional to 285,667.56, 428,514.99 and 235,654.92

Step by Step Solution

1. Step 1: Write the proportion equation
   285,667.56 : 428,514.99 = 235,654.92 : x
2. Step 2: Convert to fraction form
   285,667.56/428,514.99 = 235,654.92/x
3. Step 3: Cross multiply
   285,667.56x = 428,514.99 × 235,654.92
4. Step 4: Simplify right side
   285,667.56x = 100,981,665,687.25
5. Step 5: Solve for x
   x = 100,981,665,687.25/285,667.56
6. Step 6: Final answer
   x = 353,493.64