Finding the Fourth Proportional to 298,131.88, 411,384.59 and 201,545.89

Step by Step Solution

1. Step 1: Write the proportion equation
   298,131.88 : 411,384.59 = 201,545.89 : x
2. Step 2: Convert to fraction form
   298,131.88/411,384.59 = 201,545.89/x
3. Step 3: Cross multiply
   298,131.88x = 411,384.59 × 201,545.89
4. Step 4: Simplify right side
   298,131.88x = 82,912,870,259.18
5. Step 5: Solve for x
   x = 82,912,870,259.18/298,131.88
6. Step 6: Final answer
   x = 278,108.04