Finding the Fourth Proportional to 11,760.06, 17,626.17 and 5,172.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,760.06 : 17,626.17 = 5,172.48 : x
2. Step 2: Convert to fraction form
   11,760.06/17,626.17 = 5,172.48/x
3. Step 3: Cross multiply
   11,760.06x = 17,626.17 × 5,172.48
4. Step 4: Simplify right side
   11,760.06x = 91,171,011.80
5. Step 5: Solve for x
   x = 91,171,011.80/11,760.06
6. Step 6: Final answer
   x = 7,752.60