Finding the Fourth Proportional to 12,585.23, 17,367.69 and 6,920.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,585.23 : 17,367.69 = 6,920.09 : x
2. Step 2: Convert to fraction form
   12,585.23/17,367.69 = 6,920.09/x
3. Step 3: Cross multiply
   12,585.23x = 17,367.69 × 6,920.09
4. Step 4: Simplify right side
   12,585.23x = 120,185,977.89
5. Step 5: Solve for x
   x = 120,185,977.89/12,585.23
6. Step 6: Final answer
   x = 9,549.76