Finding the Fourth Proportional to 91,105.89, 125,726.31 and 50,822.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,105.89 : 125,726.31 = 50,822.25 : x
2. Step 2: Convert to fraction form
   91,105.89/125,726.31 = 50,822.25/x
3. Step 3: Cross multiply
   91,105.89x = 125,726.31 × 50,822.25
4. Step 4: Simplify right side
   91,105.89x = 6,389,693,958.40
5. Step 5: Solve for x
   x = 6,389,693,958.40/91,105.89
6. Step 6: Final answer
   x = 70,134.81