Finding the Fourth Proportional to 17,679.89, 24,398.34 and 9,722.63

Step by Step Solution

1. Step 1: Write the proportion equation
   17,679.89 : 24,398.34 = 9,722.63 : x
2. Step 2: Convert to fraction form
   17,679.89/24,398.34 = 9,722.63/x
3. Step 3: Cross multiply
   17,679.89x = 24,398.34 × 9,722.63
4. Step 4: Simplify right side
   17,679.89x = 237,215,983.82
5. Step 5: Solve for x
   x = 237,215,983.82/17,679.89
6. Step 6: Final answer
   x = 13,417.28