Finding the Fourth Proportional to 82,143.56, 113,370.42 and 50,330.91

Step by Step Solution

1. Step 1: Write the proportion equation
   82,143.56 : 113,370.42 = 50,330.91 : x
2. Step 2: Convert to fraction form
   82,143.56/113,370.42 = 50,330.91/x
3. Step 3: Cross multiply
   82,143.56x = 113,370.42 × 50,330.91
4. Step 4: Simplify right side
   82,143.56x = 5,706,037,019.56
5. Step 5: Solve for x
   x = 5,706,037,019.56/82,143.56
6. Step 6: Final answer
   x = 69,464.20