Finding the Fourth Proportional to 81,958.56, 113,111.28 and 50,148.60

Step by Step Solution

1. Step 1: Write the proportion equation
   81,958.56 : 113,111.28 = 50,148.60 : x
2. Step 2: Convert to fraction form
   81,958.56/113,111.28 = 50,148.60/x
3. Step 3: Cross multiply
   81,958.56x = 113,111.28 × 50,148.60
4. Step 4: Simplify right side
   81,958.56x = 5,672,372,336.21
5. Step 5: Solve for x
   x = 5,672,372,336.21/81,958.56
6. Step 6: Final answer
   x = 69,210.25