Finding the Fourth Proportional to 16,469.55, 22,710.33 and 13,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,469.55 : 22,710.33 = 13,279.50 : x
2. Step 2: Convert to fraction form
   16,469.55/22,710.33 = 13,279.50/x
3. Step 3: Cross multiply
   16,469.55x = 22,710.33 × 13,279.50
4. Step 4: Simplify right side
   16,469.55x = 301,581,827.24
5. Step 5: Solve for x
   x = 301,581,827.24/16,469.55
6. Step 6: Final answer
   x = 18,311.48