Finding the Fourth Proportional to 658,043.82, 908,100.78 and 356,237.82

Step by Step Solution

1. Step 1: Write the proportion equation
   658,043.82 : 908,100.78 = 356,237.82 : x
2. Step 2: Convert to fraction form
   658,043.82/908,100.78 = 356,237.82/x
3. Step 3: Cross multiply
   658,043.82x = 908,100.78 × 356,237.82
4. Step 4: Simplify right side
   658,043.82x = 323,499,842,207.50
5. Step 5: Solve for x
   x = 323,499,842,207.50/658,043.82
6. Step 6: Final answer
   x = 491,608.36