Finding the Fourth Proportional to 11,756.04, 17,617.56 and 8,453.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,756.04 : 17,617.56 = 8,453.56 : x
2. Step 2: Convert to fraction form
   11,756.04/17,617.56 = 8,453.56/x
3. Step 3: Cross multiply
   11,756.04x = 17,617.56 × 8,453.56
4. Step 4: Simplify right side
   11,756.04x = 148,931,100.51
5. Step 5: Solve for x
   x = 148,931,100.51/11,756.04
6. Step 6: Final answer
   x = 12,668.48