Finding the Fourth Proportional to 82,234.28, 113,485.38 and 50,420.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,234.28 : 113,485.38 = 50,420.72 : x
2. Step 2: Convert to fraction form
   82,234.28/113,485.38 = 50,420.72/x
3. Step 3: Cross multiply
   82,234.28x = 113,485.38 × 50,420.72
4. Step 4: Simplify right side
   82,234.28x = 5,722,014,569.07
5. Step 5: Solve for x
   x = 5,722,014,569.07/82,234.28
6. Step 6: Final answer
   x = 69,581.86