Finding the Fourth Proportional to 82,190.79, 113,416.83 and 50,355.36

Step by Step Solution

1. Step 1: Write the proportion equation
   82,190.79 : 113,416.83 = 50,355.36 : x
2. Step 2: Convert to fraction form
   82,190.79/113,416.83 = 50,355.36/x
3. Step 3: Cross multiply
   82,190.79x = 113,416.83 × 50,355.36
4. Step 4: Simplify right side
   82,190.79x = 5,711,145,304.71
5. Step 5: Solve for x
   x = 5,711,145,304.71/82,190.79
6. Step 6: Final answer
   x = 69,486.44