Finding the Fourth Proportional to 139,271.16, 208,906.20 and 50,524.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,271.16 : 208,906.20 = 50,524.59 : x
2. Step 2: Convert to fraction form
   139,271.16/208,906.20 = 50,524.59/x
3. Step 3: Cross multiply
   139,271.16x = 208,906.20 × 50,524.59
4. Step 4: Simplify right side
   139,271.16x = 10,554,900,103.46
5. Step 5: Solve for x
   x = 10,554,900,103.46/139,271.16
6. Step 6: Final answer
   x = 75,786.69