Finding the Fourth Proportional to 17,669.30, 24,405.27 and 13,212.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,669.30 : 24,405.27 = 13,212.88 : x
2. Step 2: Convert to fraction form
   17,669.30/24,405.27 = 13,212.88/x
3. Step 3: Cross multiply
   17,669.30x = 24,405.27 × 13,212.88
4. Step 4: Simplify right side
   17,669.30x = 322,463,903.88
5. Step 5: Solve for x
   x = 322,463,903.88/17,669.30
6. Step 6: Final answer
   x = 18,249.95