Finding the Fourth Proportional to 11,573.27, 17,343.30 and 7,188.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,573.27 : 17,343.30 = 7,188.20 : x
2. Step 2: Convert to fraction form
   11,573.27/17,343.30 = 7,188.20/x
3. Step 3: Cross multiply
   11,573.27x = 17,343.30 × 7,188.20
4. Step 4: Simplify right side
   11,573.27x = 124,667,109.06
5. Step 5: Solve for x
   x = 124,667,109.06/11,573.27
6. Step 6: Final answer
   x = 10,771.99