Finding the Fourth Proportional to 17,379.24, 23,983.34 and 9,421.40

Step by Step Solution

1. Step 1: Write the proportion equation
   17,379.24 : 23,983.34 = 9,421.40 : x
2. Step 2: Convert to fraction form
   17,379.24/23,983.34 = 9,421.40/x
3. Step 3: Cross multiply
   17,379.24x = 23,983.34 × 9,421.40
4. Step 4: Simplify right side
   17,379.24x = 225,956,472.45
5. Step 5: Solve for x
   x = 225,956,472.45/17,379.24
6. Step 6: Final answer
   x = 13,001.52