Finding the Fourth Proportional to 9,211.29, 12,711.59 and 5,019.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.29 : 12,711.59 = 5,019.54 : x
2. Step 2: Convert to fraction form
   9,211.29/12,711.59 = 5,019.54/x
3. Step 3: Cross multiply
   9,211.29x = 12,711.59 × 5,019.54
4. Step 4: Simplify right side
   9,211.29x = 63,806,334.47
5. Step 5: Solve for x
   x = 63,806,334.47/9,211.29
6. Step 6: Final answer
   x = 6,926.97