Finding the Fourth Proportional to 11,007.72, 16,517.52 and 7,259.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,007.72 : 16,517.52 = 7,259.40 : x
2. Step 2: Convert to fraction form
   11,007.72/16,517.52 = 7,259.40/x
3. Step 3: Cross multiply
   11,007.72x = 16,517.52 × 7,259.40
4. Step 4: Simplify right side
   11,007.72x = 119,907,284.69
5. Step 5: Solve for x
   x = 119,907,284.69/11,007.72
6. Step 6: Final answer
   x = 10,893.02