Finding the Fourth Proportional to 139,344.09, 209,016.72 and 34,163.03

Step by Step Solution

1. Step 1: Write the proportion equation
   139,344.09 : 209,016.72 = 34,163.03 : x
2. Step 2: Convert to fraction form
   139,344.09/209,016.72 = 34,163.03/x
3. Step 3: Cross multiply
   139,344.09x = 209,016.72 × 34,163.03
4. Step 4: Simplify right side
   139,344.09x = 7,140,643,430.78
5. Step 5: Solve for x
   x = 7,140,643,430.78/139,344.09
6. Step 6: Final answer
   x = 51,244.68