Finding the Fourth Proportional to 89,638.82, 123,673.63 and 50,870.22

Step by Step Solution

1. Step 1: Write the proportion equation
   89,638.82 : 123,673.63 = 50,870.22 : x
2. Step 2: Convert to fraction form
   89,638.82/123,673.63 = 50,870.22/x
3. Step 3: Cross multiply
   89,638.82x = 123,673.63 × 50,870.22
4. Step 4: Simplify right side
   89,638.82x = 6,291,304,766.30
5. Step 5: Solve for x
   x = 6,291,304,766.30/89,638.82
6. Step 6: Final answer
   x = 70,185.05