Finding the Fourth Proportional to 503,581.69, 755,096.43 and 199,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   503,581.69 : 755,096.43 = 199,667.98 : x
2. Step 2: Convert to fraction form
   503,581.69/755,096.43 = 199,667.98/x
3. Step 3: Cross multiply
   503,581.69x = 755,096.43 × 199,667.98
4. Step 4: Simplify right side
   503,581.69x = 150,768,578,883.31
5. Step 5: Solve for x
   x = 150,768,578,883.31/503,581.69
6. Step 6: Final answer
   x = 299,392.50