Finding the Fourth Proportional to 8,019.39, 12,031.76 and 5,054.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,019.39 : 12,031.76 = 5,054.42 : x
2. Step 2: Convert to fraction form
   8,019.39/12,031.76 = 5,054.42/x
3. Step 3: Cross multiply
   8,019.39x = 12,031.76 × 5,054.42
4. Step 4: Simplify right side
   8,019.39x = 60,813,511.38
5. Step 5: Solve for x
   x = 60,813,511.38/8,019.39
6. Step 6: Final answer
   x = 7,583.31