Finding the Fourth Proportional to 382,118.67, 527,281.86 and 220,949.31

Step by Step Solution

1. Step 1: Write the proportion equation
   382,118.67 : 527,281.86 = 220,949.31 : x
2. Step 2: Convert to fraction form
   382,118.67/527,281.86 = 220,949.31/x
3. Step 3: Cross multiply
   382,118.67x = 527,281.86 × 220,949.31
4. Step 4: Simplify right side
   382,118.67x = 116,502,563,142.52
5. Step 5: Solve for x
   x = 116,502,563,142.52/382,118.67
6. Step 6: Final answer
   x = 304,885.82