Finding the Fourth Proportional to 479,401.69, 661,570.17 and 261,614.67

Step by Step Solution

1. Step 1: Write the proportion equation
   479,401.69 : 661,570.17 = 261,614.67 : x
2. Step 2: Convert to fraction form
   479,401.69/661,570.17 = 261,614.67/x
3. Step 3: Cross multiply
   479,401.69x = 661,570.17 × 261,614.67
4. Step 4: Simplify right side
   479,401.69x = 173,076,462,312.49
5. Step 5: Solve for x
   x = 173,076,462,312.49/479,401.69
6. Step 6: Final answer
   x = 361,025.97