Finding the Fourth Proportional to 318,789, 439,911.72 and 182,816.33

Step by Step Solution

1. Step 1: Write the proportion equation
   318,789 : 439,911.72 = 182,816.33 : x
2. Step 2: Convert to fraction form
   318,789/439,911.72 = 182,816.33/x
3. Step 3: Cross multiply
   318,789x = 439,911.72 × 182,816.33
4. Step 4: Simplify right side
   318,789x = 80,423,043,974.83
5. Step 5: Solve for x
   x = 80,423,043,974.83/318,789
6. Step 6: Final answer
   x = 252,276.72