Finding the Fourth Proportional to 50,306.69, 75,401.71 and 47,390.69

Step by Step Solution

1. Step 1: Write the proportion equation
   50,306.69 : 75,401.71 = 47,390.69 : x
2. Step 2: Convert to fraction form
   50,306.69/75,401.71 = 47,390.69/x
3. Step 3: Cross multiply
   50,306.69x = 75,401.71 × 47,390.69
4. Step 4: Simplify right side
   50,306.69x = 3,573,339,064.08
5. Step 5: Solve for x
   x = 3,573,339,064.08/50,306.69
6. Step 6: Final answer
   x = 71,031.09