Finding the Fourth Proportional to 361,803.06, 499,304.89 and 200,648.51

Step by Step Solution

1. Step 1: Write the proportion equation
   361,803.06 : 499,304.89 = 200,648.51 : x
2. Step 2: Convert to fraction form
   361,803.06/499,304.89 = 200,648.51/x
3. Step 3: Cross multiply
   361,803.06x = 499,304.89 × 200,648.51
4. Step 4: Simplify right side
   361,803.06x = 100,184,779,717.69
5. Step 5: Solve for x
   x = 100,184,779,717.69/361,803.06
6. Step 6: Final answer
   x = 276,904.18