Finding the Fourth Proportional to 82,399.92, 113,703.48 and 50,570.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,399.92 : 113,703.48 = 50,570.16 : x
2. Step 2: Convert to fraction form
   82,399.92/113,703.48 = 50,570.16/x
3. Step 3: Cross multiply
   82,399.92x = 113,703.48 × 50,570.16
4. Step 4: Simplify right side
   82,399.92x = 5,750,003,176.16
5. Step 5: Solve for x
   x = 5,750,003,176.16/82,399.92
6. Step 6: Final answer
   x = 69,781.66