Finding the Fourth Proportional to 389,648.34, 583,955.83 and 200,101.05

Step by Step Solution

1. Step 1: Write the proportion equation
   389,648.34 : 583,955.83 = 200,101.05 : x
2. Step 2: Convert to fraction form
   389,648.34/583,955.83 = 200,101.05/x
3. Step 3: Cross multiply
   389,648.34x = 583,955.83 × 200,101.05
4. Step 4: Simplify right side
   389,648.34x = 116,850,174,236.37
5. Step 5: Solve for x
   x = 116,850,174,236.37/389,648.34
6. Step 6: Final answer
   x = 299,886.24