Finding the Fourth Proportional to 16,585.30, 22,870.17 and 12,809.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,585.30 : 22,870.17 = 12,809.08 : x
2. Step 2: Convert to fraction form
   16,585.30/22,870.17 = 12,809.08/x
3. Step 3: Cross multiply
   16,585.30x = 22,870.17 × 12,809.08
4. Step 4: Simplify right side
   16,585.30x = 292,945,837.14
5. Step 5: Solve for x
   x = 292,945,837.14/16,585.30
6. Step 6: Final answer
   x = 17,662.98