Finding the Fourth Proportional to 16,472.08, 22,709.46 and 13,628.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,472.08 : 22,709.46 = 13,628.98 : x
2. Step 2: Convert to fraction form
   16,472.08/22,709.46 = 13,628.98/x
3. Step 3: Cross multiply
   16,472.08x = 22,709.46 × 13,628.98
4. Step 4: Simplify right side
   16,472.08x = 309,506,776.15
5. Step 5: Solve for x
   x = 309,506,776.15/16,472.08
6. Step 6: Final answer
   x = 18,789.78