Finding the Fourth Proportional to 16,503.57, 22,778.89 and 9,434.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,503.57 : 22,778.89 = 9,434.09 : x
2. Step 2: Convert to fraction form
   16,503.57/22,778.89 = 9,434.09/x
3. Step 3: Cross multiply
   16,503.57x = 22,778.89 × 9,434.09
4. Step 4: Simplify right side
   16,503.57x = 214,898,131.72
5. Step 5: Solve for x
   x = 214,898,131.72/16,503.57
6. Step 6: Final answer
   x = 13,021.31