Finding the Fourth Proportional to 11,837.37, 17,744.04 and 7,680.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,837.37 : 17,744.04 = 7,680.03 : x
2. Step 2: Convert to fraction form
   11,837.37/17,744.04 = 7,680.03/x
3. Step 3: Cross multiply
   11,837.37x = 17,744.04 × 7,680.03
4. Step 4: Simplify right side
   11,837.37x = 136,274,759.52
5. Step 5: Solve for x
   x = 136,274,759.52/11,837.37
6. Step 6: Final answer
   x = 11,512.25