Finding the Fourth Proportional to 81,181.37, 111,957.72 and 50,969.49

Step by Step Solution

1. Step 1: Write the proportion equation
   81,181.37 : 111,957.72 = 50,969.49 : x
2. Step 2: Convert to fraction form
   81,181.37/111,957.72 = 50,969.49/x
3. Step 3: Cross multiply
   81,181.37x = 111,957.72 × 50,969.49
4. Step 4: Simplify right side
   81,181.37x = 5,706,427,889.96
5. Step 5: Solve for x
   x = 5,706,427,889.96/81,181.37
6. Step 6: Final answer
   x = 70,292.34