Finding the Fourth Proportional to 91,144.17, 125,778.72 and 50,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,144.17 : 125,778.72 = 50,857.50 : x
2. Step 2: Convert to fraction form
   91,144.17/125,778.72 = 50,857.50/x
3. Step 3: Cross multiply
   91,144.17x = 125,778.72 × 50,857.50
4. Step 4: Simplify right side
   91,144.17x = 6,396,791,914.79
5. Step 5: Solve for x
   x = 6,396,791,914.79/91,144.17
6. Step 6: Final answer
   x = 70,183.23