Finding the Fourth Proportional to 673,854.30, 929,911.83 and 367,929.72

Step by Step Solution

1. Step 1: Write the proportion equation
   673,854.30 : 929,911.83 = 367,929.72 : x
2. Step 2: Convert to fraction form
   673,854.30/929,911.83 = 367,929.72/x
3. Step 3: Cross multiply
   673,854.30x = 929,911.83 × 367,929.72
4. Step 4: Simplify right side
   673,854.30x = 342,142,199,236.59
5. Step 5: Solve for x
   x = 342,142,199,236.59/673,854.30
6. Step 6: Final answer
   x = 507,739.13