Finding the Fourth Proportional to 81,063.88, 111,870.05 and 50,850.47

Step by Step Solution

1. Step 1: Write the proportion equation
   81,063.88 : 111,870.05 = 50,850.47 : x
2. Step 2: Convert to fraction form
   81,063.88/111,870.05 = 50,850.47/x
3. Step 3: Cross multiply
   81,063.88x = 111,870.05 × 50,850.47
4. Step 4: Simplify right side
   81,063.88x = 5,688,644,646.85
5. Step 5: Solve for x
   x = 5,688,644,646.85/81,063.88
6. Step 6: Final answer
   x = 70,174.84