Finding the Fourth Proportional to 16,321.82, 22,536.81 and 12,538.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,321.82 : 22,536.81 = 12,538.98 : x
2. Step 2: Convert to fraction form
   16,321.82/22,536.81 = 12,538.98/x
3. Step 3: Cross multiply
   16,321.82x = 22,536.81 × 12,538.98
4. Step 4: Simplify right side
   16,321.82x = 282,588,609.85
5. Step 5: Solve for x
   x = 282,588,609.85/16,321.82
6. Step 6: Final answer
   x = 17,313.55