Finding the Fourth Proportional to 11,839.97, 16,336.89 and 7,124.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,839.97 : 16,336.89 = 7,124.56 : x
2. Step 2: Convert to fraction form
   11,839.97/16,336.89 = 7,124.56/x
3. Step 3: Cross multiply
   11,839.97x = 16,336.89 × 7,124.56
4. Step 4: Simplify right side
   11,839.97x = 116,393,112.18
5. Step 5: Solve for x
   x = 116,393,112.18/11,839.97
6. Step 6: Final answer
   x = 9,830.52