Finding the Fourth Proportional to 17,663.15, 24,373.98 and 9,705.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,663.15 : 24,373.98 = 9,705.21 : x
2. Step 2: Convert to fraction form
   17,663.15/24,373.98 = 9,705.21/x
3. Step 3: Cross multiply
   17,663.15x = 24,373.98 × 9,705.21
4. Step 4: Simplify right side
   17,663.15x = 236,554,594.44
5. Step 5: Solve for x
   x = 236,554,594.44/17,663.15
6. Step 6: Final answer
   x = 13,392.55