Finding the Fourth Proportional to 80,969.50, 111,747.66 and 47,435.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,969.50 : 111,747.66 = 47,435.50 : x
2. Step 2: Convert to fraction form
   80,969.50/111,747.66 = 47,435.50/x
3. Step 3: Cross multiply
   80,969.50x = 111,747.66 × 47,435.50
4. Step 4: Simplify right side
   80,969.50x = 5,300,806,125.93
5. Step 5: Solve for x
   x = 5,300,806,125.93/80,969.50
6. Step 6: Final answer
   x = 65,466.70