Finding the Fourth Proportional to 17,128.07, 23,636.86 and 9,574.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.07 : 23,636.86 = 9,574.71 : x
2. Step 2: Convert to fraction form
   17,128.07/23,636.86 = 9,574.71/x
3. Step 3: Cross multiply
   17,128.07x = 23,636.86 × 9,574.71
4. Step 4: Simplify right side
   17,128.07x = 226,316,021.09
5. Step 5: Solve for x
   x = 226,316,021.09/17,128.07
6. Step 6: Final answer
   x = 13,213.17