Finding the Fourth Proportional to 359,981, 496,773.78 and 201,005

Step by Step Solution

1. Step 1: Write the proportion equation
   359,981 : 496,773.78 = 201,005 : x
2. Step 2: Convert to fraction form
   359,981/496,773.78 = 201,005/x
3. Step 3: Cross multiply
   359,981x = 496,773.78 × 201,005
4. Step 4: Simplify right side
   359,981x = 99,854,013,648.90
5. Step 5: Solve for x
   x = 99,854,013,648.90/359,981
6. Step 6: Final answer
   x = 277,386.90