Finding the Fourth Proportional to 12,448.48, 17,179.76 and 7,605.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,448.48 : 17,179.76 = 7,605.29 : x
2. Step 2: Convert to fraction form
   12,448.48/17,179.76 = 7,605.29/x
3. Step 3: Cross multiply
   12,448.48x = 17,179.76 × 7,605.29
4. Step 4: Simplify right side
   12,448.48x = 130,656,933.01
5. Step 5: Solve for x
   x = 130,656,933.01/12,448.48
6. Step 6: Final answer
   x = 10,495.81