Finding the Fourth Proportional to 504,498.52, 696,198.56 and 275,057.79

Step by Step Solution

1. Step 1: Write the proportion equation
   504,498.52 : 696,198.56 = 275,057.79 : x
2. Step 2: Convert to fraction form
   504,498.52/696,198.56 = 275,057.79/x
3. Step 3: Cross multiply
   504,498.52x = 696,198.56 × 275,057.79
4. Step 4: Simplify right side
   504,498.52x = 191,494,838,002.43
5. Step 5: Solve for x
   x = 191,494,838,002.43/504,498.52
6. Step 6: Final answer
   x = 379,574.63