Finding the Fourth Proportional to 361,990.42, 499,780.73 and 224,315.43

Step by Step Solution

1. Step 1: Write the proportion equation
   361,990.42 : 499,780.73 = 224,315.43 : x
2. Step 2: Convert to fraction form
   361,990.42/499,780.73 = 224,315.43/x
3. Step 3: Cross multiply
   361,990.42x = 499,780.73 × 224,315.43
4. Step 4: Simplify right side
   361,990.42x = 112,108,528,042.28
5. Step 5: Solve for x
   x = 112,108,528,042.28/361,990.42
6. Step 6: Final answer
   x = 309,700.26