Finding the Fourth Proportional to 16,470.72, 22,723.68 and 12,695.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470.72 : 22,723.68 = 12,695.04 : x
2. Step 2: Convert to fraction form
   16,470.72/22,723.68 = 12,695.04/x
3. Step 3: Cross multiply
   16,470.72x = 22,723.68 × 12,695.04
4. Step 4: Simplify right side
   16,470.72x = 288,478,026.55
5. Step 5: Solve for x
   x = 288,478,026.55/16,470.72
6. Step 6: Final answer
   x = 17,514.60