Finding the Fourth Proportional to 415,638.72, 573,581.52 and 224,651.52

Step by Step Solution

1. Step 1: Write the proportion equation
   415,638.72 : 573,581.52 = 224,651.52 : x
2. Step 2: Convert to fraction form
   415,638.72/573,581.52 = 224,651.52/x
3. Step 3: Cross multiply
   415,638.72x = 573,581.52 × 224,651.52
4. Step 4: Simplify right side
   415,638.72x = 128,855,960,311.91
5. Step 5: Solve for x
   x = 128,855,960,311.91/415,638.72
6. Step 6: Final answer
   x = 310,019.14