Finding the Fourth Proportional to 12,389.22, 17,094.60 and 7,085.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.22 : 17,094.60 = 7,085.82 : x
2. Step 2: Convert to fraction form
   12,389.22/17,094.60 = 7,085.82/x
3. Step 3: Cross multiply
   12,389.22x = 17,094.60 × 7,085.82
4. Step 4: Simplify right side
   12,389.22x = 121,129,258.57
5. Step 5: Solve for x
   x = 121,129,258.57/12,389.22
6. Step 6: Final answer
   x = 9,776.99