Finding the Fourth Proportional to 369,867.50, 510,420.84 and 200,105.27

Step by Step Solution

1. Step 1: Write the proportion equation
   369,867.50 : 510,420.84 = 200,105.27 : x
2. Step 2: Convert to fraction form
   369,867.50/510,420.84 = 200,105.27/x
3. Step 3: Cross multiply
   369,867.50x = 510,420.84 × 200,105.27
4. Step 4: Simplify right side
   369,867.50x = 102,137,900,001.83
5. Step 5: Solve for x
   x = 102,137,900,001.83/369,867.50
6. Step 6: Final answer
   x = 276,147.27