Finding the Fourth Proportional to 67,918.40, 101,676.72 and 50,465.60

Step by Step Solution

1. Step 1: Write the proportion equation
   67,918.40 : 101,676.72 = 50,465.60 : x
2. Step 2: Convert to fraction form
   67,918.40/101,676.72 = 50,465.60/x
3. Step 3: Cross multiply
   67,918.40x = 101,676.72 × 50,465.60
4. Step 4: Simplify right side
   67,918.40x = 5,131,176,680.83
5. Step 5: Solve for x
   x = 5,131,176,680.83/67,918.40
6. Step 6: Final answer
   x = 75,549.14