Finding the Fourth Proportional to 200,739.30, 301,109.49 and 67,713

Step by Step Solution

1. Step 1: Write the proportion equation
   200,739.30 : 301,109.49 = 67,713 : x
2. Step 2: Convert to fraction form
   200,739.30/301,109.49 = 67,713/x
3. Step 3: Cross multiply
   200,739.30x = 301,109.49 × 67,713
4. Step 4: Simplify right side
   200,739.30x = 20,389,026,896.37
5. Step 5: Solve for x
   x = 20,389,026,896.37/200,739.30
6. Step 6: Final answer
   x = 101,569.68