Finding the Fourth Proportional to 16,317, 22,530.42 and 12,798.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,317 : 22,530.42 = 12,798.36 : x
2. Step 2: Convert to fraction form
   16,317/22,530.42 = 12,798.36/x
3. Step 3: Cross multiply
   16,317x = 22,530.42 × 12,798.36
4. Step 4: Simplify right side
   16,317x = 288,352,426.11
5. Step 5: Solve for x
   x = 288,352,426.11/16,317
6. Step 6: Final answer
   x = 17,671.90