Finding the Fourth Proportional to 12,901.48, 17,804.22 and 9,665.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.48 : 17,804.22 = 9,665.56 : x
2. Step 2: Convert to fraction form
   12,901.48/17,804.22 = 9,665.56/x
3. Step 3: Cross multiply
   12,901.48x = 17,804.22 × 9,665.56
4. Step 4: Simplify right side
   12,901.48x = 172,087,756.66
5. Step 5: Solve for x
   x = 172,087,756.66/12,901.48
6. Step 6: Final answer
   x = 13,338.61