Finding the Fourth Proportional to 9,211.08, 12,711.35 and 5,019.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.08 : 12,711.35 = 5,019.33 : x
2. Step 2: Convert to fraction form
   9,211.08/12,711.35 = 5,019.33/x
3. Step 3: Cross multiply
   9,211.08x = 12,711.35 × 5,019.33
4. Step 4: Simplify right side
   9,211.08x = 63,802,435.30
5. Step 5: Solve for x
   x = 63,802,435.30/9,211.08
6. Step 6: Final answer
   x = 6,926.71