Finding the Fourth Proportional to 82,405.79, 113,722.22 and 50,555.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,405.79 : 113,722.22 = 50,555.78 : x
2. Step 2: Convert to fraction form
   82,405.79/113,722.22 = 50,555.78/x
3. Step 3: Cross multiply
   82,405.79x = 113,722.22 × 50,555.78
4. Step 4: Simplify right side
   82,405.79x = 5,749,315,282.65
5. Step 5: Solve for x
   x = 5,749,315,282.65/82,405.79
6. Step 6: Final answer
   x = 69,768.34