Finding the Fourth Proportional to 379,002.43, 523,024.05 and 209,236.69

Step by Step Solution

1. Step 1: Write the proportion equation
   379,002.43 : 523,024.05 = 209,236.69 : x
2. Step 2: Convert to fraction form
   379,002.43/523,024.05 = 209,236.69/x
3. Step 3: Cross multiply
   379,002.43x = 523,024.05 × 209,236.69
4. Step 4: Simplify right side
   379,002.43x = 109,435,821,012.40
5. Step 5: Solve for x
   x = 109,435,821,012.40/379,002.43
6. Step 6: Final answer
   x = 288,747.02