Finding the Fourth Proportional to 9,114.72, 12,578.27 and 5,081.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,114.72 : 12,578.27 = 5,081.49 : x
2. Step 2: Convert to fraction form
   9,114.72/12,578.27 = 5,081.49/x
3. Step 3: Cross multiply
   9,114.72x = 12,578.27 × 5,081.49
4. Step 4: Simplify right side
   9,114.72x = 63,916,353.22
5. Step 5: Solve for x
   x = 63,916,353.22/9,114.72
6. Step 6: Final answer
   x = 7,012.43