Finding the Fourth Proportional to 361,564.83, 498,963.15 and 200,422.62

Step by Step Solution

1. Step 1: Write the proportion equation
   361,564.83 : 498,963.15 = 200,422.62 : x
2. Step 2: Convert to fraction form
   361,564.83/498,963.15 = 200,422.62/x
3. Step 3: Cross multiply
   361,564.83x = 498,963.15 × 200,422.62
4. Step 4: Simplify right side
   361,564.83x = 100,003,501,806.45
5. Step 5: Solve for x
   x = 100,003,501,806.45/361,564.83
6. Step 6: Final answer
   x = 276,585.26