Finding the Fourth Proportional to 9,118.23, 12,581.85 and 5,085.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,118.23 : 12,581.85 = 5,085.06 : x
2. Step 2: Convert to fraction form
   9,118.23/12,581.85 = 5,085.06/x
3. Step 3: Cross multiply
   9,118.23x = 12,581.85 × 5,085.06
4. Step 4: Simplify right side
   9,118.23x = 63,979,462.16
5. Step 5: Solve for x
   x = 63,979,462.16/9,118.23
6. Step 6: Final answer
   x = 7,016.65