Finding the Fourth Proportional to 16,443.82, 24,686.50 and 13,153.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,443.82 : 24,686.50 = 13,153.07 : x
2. Step 2: Convert to fraction form
   16,443.82/24,686.50 = 13,153.07/x
3. Step 3: Cross multiply
   16,443.82x = 24,686.50 × 13,153.07
4. Step 4: Simplify right side
   16,443.82x = 324,703,262.56
5. Step 5: Solve for x
   x = 324,703,262.56/16,443.82
6. Step 6: Final answer
   x = 19,746.22