Finding the Fourth Proportional to 80,742.82, 111,441.45 and 47,219.62

Step by Step Solution

1. Step 1: Write the proportion equation
   80,742.82 : 111,441.45 = 47,219.62 : x
2. Step 2: Convert to fraction form
   80,742.82/111,441.45 = 47,219.62/x
3. Step 3: Cross multiply
   80,742.82x = 111,441.45 × 47,219.62
4. Step 4: Simplify right side
   80,742.82x = 5,262,222,921.25
5. Step 5: Solve for x
   x = 5,262,222,921.25/80,742.82
6. Step 6: Final answer
   x = 65,172.64