Finding the Fourth Proportional to 139,014.82, 208,546.94 and 50,392.11

Step by Step Solution

1. Step 1: Write the proportion equation
   139,014.82 : 208,546.94 = 50,392.11 : x
2. Step 2: Convert to fraction form
   139,014.82/208,546.94 = 50,392.11/x
3. Step 3: Cross multiply
   139,014.82x = 208,546.94 × 50,392.11
4. Step 4: Simplify right side
   139,014.82x = 10,509,120,340.64
5. Step 5: Solve for x
   x = 10,509,120,340.64/139,014.82
6. Step 6: Final answer
   x = 75,597.12