Finding the Fourth Proportional to 81,018.82, 111,774.78 and 50,751.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,018.82 : 111,774.78 = 50,751.46 : x
2. Step 2: Convert to fraction form
   81,018.82/111,774.78 = 50,751.46/x
3. Step 3: Cross multiply
   81,018.82x = 111,774.78 × 50,751.46
4. Step 4: Simplify right side
   81,018.82x = 5,672,733,276.18
5. Step 5: Solve for x
   x = 5,672,733,276.18/81,018.82
6. Step 6: Final answer
   x = 70,017.48