Finding the Fourth Proportional to 9,063.78, 12,508.22 and 5,085.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,063.78 : 12,508.22 = 5,085.18 : x
2. Step 2: Convert to fraction form
   9,063.78/12,508.22 = 5,085.18/x
3. Step 3: Cross multiply
   9,063.78x = 12,508.22 × 5,085.18
4. Step 4: Simplify right side
   9,063.78x = 63,606,550.18
5. Step 5: Solve for x
   x = 63,606,550.18/9,063.78
6. Step 6: Final answer
   x = 7,017.66