Finding the Fourth Proportional to 8,073.78, 12,111.42 and 3,009.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.78 : 12,111.42 = 3,009.30 : x
2. Step 2: Convert to fraction form
   8,073.78/12,111.42 = 3,009.30/x
3. Step 3: Cross multiply
   8,073.78x = 12,111.42 × 3,009.30
4. Step 4: Simplify right side
   8,073.78x = 36,446,896.21
5. Step 5: Solve for x
   x = 36,446,896.21/8,073.78
6. Step 6: Final answer
   x = 4,514.23