Finding the Fourth Proportional to 11,805.91, 17,728.61 and 7,373.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,805.91 : 17,728.61 = 7,373.89 : x
2. Step 2: Convert to fraction form
   11,805.91/17,728.61 = 7,373.89/x
3. Step 3: Cross multiply
   11,805.91x = 17,728.61 × 7,373.89
4. Step 4: Simplify right side
   11,805.91x = 130,728,738.80
5. Step 5: Solve for x
   x = 130,728,738.80/11,805.91
6. Step 6: Final answer
   x = 11,073.16