Finding the Fourth Proportional to 81,016.07, 111,771 and 50,748.71

Step by Step Solution

1. Step 1: Write the proportion equation
   81,016.07 : 111,771 = 50,748.71 : x
2. Step 2: Convert to fraction form
   81,016.07/111,771 = 50,748.71/x
3. Step 3: Cross multiply
   81,016.07x = 111,771 × 50,748.71
4. Step 4: Simplify right side
   81,016.07x = 5,672,233,506.56
5. Step 5: Solve for x
   x = 5,672,233,506.56/81,016.07
6. Step 6: Final answer
   x = 70,013.69