Finding the Fourth Proportional to 81,122.31, 111,983.31 and 49,301.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,122.31 : 111,983.31 = 49,301.46 : x
2. Step 2: Convert to fraction form
   81,122.31/111,983.31 = 49,301.46/x
3. Step 3: Cross multiply
   81,122.31x = 111,983.31 × 49,301.46
4. Step 4: Simplify right side
   81,122.31x = 5,520,940,678.63
5. Step 5: Solve for x
   x = 5,520,940,678.63/81,122.31
6. Step 6: Final answer
   x = 68,057.00