Finding the Fourth Proportional to 926,057.37, 1,389,139.83 and 357,441.69

Step by Step Solution

1. Step 1: Write the proportion equation
   926,057.37 : 1,389,139.83 = 357,441.69 : x
2. Step 2: Convert to fraction form
   926,057.37/1,389,139.83 = 357,441.69/x
3. Step 3: Cross multiply
   926,057.37x = 1,389,139.83 × 357,441.69
4. Step 4: Simplify right side
   926,057.37x = 496,536,488,481.51
5. Step 5: Solve for x
   x = 496,536,488,481.51/926,057.37
6. Step 6: Final answer
   x = 536,183.29