Finding the Fourth Proportional to 139,077.08, 208,672.32 and 50,339.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,077.08 : 208,672.32 = 50,339.96 : x
2. Step 2: Convert to fraction form
   139,077.08/208,672.32 = 50,339.96/x
3. Step 3: Cross multiply
   139,077.08x = 208,672.32 × 50,339.96
4. Step 4: Simplify right side
   139,077.08x = 10,504,556,241.91
5. Step 5: Solve for x
   x = 10,504,556,241.91/139,077.08
6. Step 6: Final answer
   x = 75,530.46