Finding the Fourth Proportional to 17,316.34, 23,896.56 and 9,864.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,316.34 : 23,896.56 = 9,864.34 : x
2. Step 2: Convert to fraction form
   17,316.34/23,896.56 = 9,864.34/x
3. Step 3: Cross multiply
   17,316.34x = 23,896.56 × 9,864.34
4. Step 4: Simplify right side
   17,316.34x = 235,723,792.67
5. Step 5: Solve for x
   x = 235,723,792.67/17,316.34
6. Step 6: Final answer
   x = 13,612.80