Finding the Fourth Proportional to 443,031.89, 664,515.69 and 173,109.29

Step by Step Solution

1. Step 1: Write the proportion equation
   443,031.89 : 664,515.69 = 173,109.29 : x
2. Step 2: Convert to fraction form
   443,031.89/664,515.69 = 173,109.29/x
3. Step 3: Cross multiply
   443,031.89x = 664,515.69 × 173,109.29
4. Step 4: Simplify right side
   443,031.89x = 115,033,839,289.76
5. Step 5: Solve for x
   x = 115,033,839,289.76/443,031.89
6. Step 6: Final answer
   x = 259,651.37