Finding the Fourth Proportional to 362,137.42, 499,634.06 and 209,155.42

Step by Step Solution

1. Step 1: Write the proportion equation
   362,137.42 : 499,634.06 = 209,155.42 : x
2. Step 2: Convert to fraction form
   362,137.42/499,634.06 = 209,155.42/x
3. Step 3: Cross multiply
   362,137.42x = 499,634.06 × 209,155.42
4. Step 4: Simplify right side
   362,137.42x = 104,501,171,665.61
5. Step 5: Solve for x
   x = 104,501,171,665.61/362,137.42
6. Step 6: Final answer
   x = 288,567.73