Finding the Fourth Proportional to 67,821.30, 101,829.15 and 51,297.30

Step by Step Solution

1. Step 1: Write the proportion equation
   67,821.30 : 101,829.15 = 51,297.30 : x
2. Step 2: Convert to fraction form
   67,821.30/101,829.15 = 51,297.30/x
3. Step 3: Cross multiply
   67,821.30x = 101,829.15 × 51,297.30
4. Step 4: Simplify right side
   67,821.30x = 5,223,560,456.30
5. Step 5: Solve for x
   x = 5,223,560,456.30/67,821.30
6. Step 6: Final answer
   x = 77,019.47