Finding the Fourth Proportional to 81,912.40, 113,060.49 and 50,107.93

Step by Step Solution

1. Step 1: Write the proportion equation
   81,912.40 : 113,060.49 = 50,107.93 : x
2. Step 2: Convert to fraction form
   81,912.40/113,060.49 = 50,107.93/x
3. Step 3: Cross multiply
   81,912.40x = 113,060.49 × 50,107.93
4. Step 4: Simplify right side
   81,912.40x = 5,665,227,118.69
5. Step 5: Solve for x
   x = 5,665,227,118.69/81,912.40
6. Step 6: Final answer
   x = 69,162.02