Finding the Fourth Proportional to 10,728.22, 14,789.44 and 7,531.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,728.22 : 14,789.44 = 7,531.79 : x
2. Step 2: Convert to fraction form
   10,728.22/14,789.44 = 7,531.79/x
3. Step 3: Cross multiply
   10,728.22x = 14,789.44 × 7,531.79
4. Step 4: Simplify right side
   10,728.22x = 111,390,844.69
5. Step 5: Solve for x
   x = 111,390,844.69/10,728.22
6. Step 6: Final answer
   x = 10,382.98