Finding the Fourth Proportional to 16,760.22, 23,128.47 and 9,308.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,760.22 : 23,128.47 = 9,308.70 : x
2. Step 2: Convert to fraction form
   16,760.22/23,128.47 = 9,308.70/x
3. Step 3: Cross multiply
   16,760.22x = 23,128.47 × 9,308.70
4. Step 4: Simplify right side
   16,760.22x = 215,295,988.69
5. Step 5: Solve for x
   x = 215,295,988.69/16,760.22
6. Step 6: Final answer
   x = 12,845.65