Finding the Fourth Proportional to 139,484.22, 209,222.46 and 50,739.36

Step by Step Solution

1. Step 1: Write the proportion equation
   139,484.22 : 209,222.46 = 50,739.36 : x
2. Step 2: Convert to fraction form
   139,484.22/209,222.46 = 50,739.36/x
3. Step 3: Cross multiply
   139,484.22x = 209,222.46 × 50,739.36
4. Step 4: Simplify right side
   139,484.22x = 10,615,813,718.03
5. Step 5: Solve for x
   x = 10,615,813,718.03/139,484.22
6. Step 6: Final answer
   x = 76,107.63