Finding the Fourth Proportional to 517,185.61, 713,814.42 and 323,683.29

Step by Step Solution

1. Step 1: Write the proportion equation
   517,185.61 : 713,814.42 = 323,683.29 : x
2. Step 2: Convert to fraction form
   517,185.61/713,814.42 = 323,683.29/x
3. Step 3: Cross multiply
   517,185.61x = 713,814.42 × 323,683.29
4. Step 4: Simplify right side
   517,185.61x = 231,049,801,128.85
5. Step 5: Solve for x
   x = 231,049,801,128.85/517,185.61
6. Step 6: Final answer
   x = 446,744.45