Finding the Fourth Proportional to 672,383.31, 1,008,722.52 and 199,105.44

Step by Step Solution

1. Step 1: Write the proportion equation
   672,383.31 : 1,008,722.52 = 199,105.44 : x
2. Step 2: Convert to fraction form
   672,383.31/1,008,722.52 = 199,105.44/x
3. Step 3: Cross multiply
   672,383.31x = 1,008,722.52 × 199,105.44
4. Step 4: Simplify right side
   672,383.31x = 200,842,141,182.51
5. Step 5: Solve for x
   x = 200,842,141,182.51/672,383.31
6. Step 6: Final answer
   x = 298,701.85