Finding the Fourth Proportional to 593,035.60, 818,389.59 and 321,103.72

Step by Step Solution

1. Step 1: Write the proportion equation
   593,035.60 : 818,389.59 = 321,103.72 : x
2. Step 2: Convert to fraction form
   593,035.60/818,389.59 = 321,103.72/x
3. Step 3: Cross multiply
   593,035.60x = 818,389.59 × 321,103.72
4. Step 4: Simplify right side
   593,035.60x = 262,787,941,758.28
5. Step 5: Solve for x
   x = 262,787,941,758.28/593,035.60
6. Step 6: Final answer
   x = 443,123.38