Finding the Fourth Proportional to 17,128.83, 23,634.81 and 9,574.86

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.83 : 23,634.81 = 9,574.86 : x
2. Step 2: Convert to fraction form
   17,128.83/23,634.81 = 9,574.86/x
3. Step 3: Cross multiply
   17,128.83x = 23,634.81 × 9,574.86
4. Step 4: Simplify right side
   17,128.83x = 226,299,996.88
5. Step 5: Solve for x
   x = 226,299,996.88/17,128.83
6. Step 6: Final answer
   x = 13,211.64