Finding the Fourth Proportional to 81,967.56, 113,123.72 and 50,157.60

Step by Step Solution

1. Step 1: Write the proportion equation
   81,967.56 : 113,123.72 = 50,157.60 : x
2. Step 2: Convert to fraction form
   81,967.56/113,123.72 = 50,157.60/x
3. Step 3: Cross multiply
   81,967.56x = 113,123.72 × 50,157.60
4. Step 4: Simplify right side
   81,967.56x = 5,674,014,298.27
5. Step 5: Solve for x
   x = 5,674,014,298.27/81,967.56
6. Step 6: Final answer
   x = 69,222.68