Finding the Fourth Proportional to 22,879.08, 31,570.52 and 12,806.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,879.08 : 31,570.52 = 12,806.12 : x
2. Step 2: Convert to fraction form
   22,879.08/31,570.52 = 12,806.12/x
3. Step 3: Cross multiply
   22,879.08x = 31,570.52 × 12,806.12
4. Step 4: Simplify right side
   22,879.08x = 404,295,867.58
5. Step 5: Solve for x
   x = 404,295,867.58/22,879.08
6. Step 6: Final answer
   x = 17,670.98