Finding the Fourth Proportional to 361,765, 499,235.70 and 202,789

Step by Step Solution

1. Step 1: Write the proportion equation
   361,765 : 499,235.70 = 202,789 : x
2. Step 2: Convert to fraction form
   361,765/499,235.70 = 202,789/x
3. Step 3: Cross multiply
   361,765x = 499,235.70 × 202,789
4. Step 4: Simplify right side
   361,765x = 101,239,508,367.30
5. Step 5: Solve for x
   x = 101,239,508,367.30/361,765
6. Step 6: Final answer
   x = 279,848.82