Finding the Fourth Proportional to 11,009.41, 15,205.61 and 7,249.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,009.41 : 15,205.61 = 7,249.39 : x
2. Step 2: Convert to fraction form
   11,009.41/15,205.61 = 7,249.39/x
3. Step 3: Cross multiply
   11,009.41x = 15,205.61 × 7,249.39
4. Step 4: Simplify right side
   11,009.41x = 110,231,307.90
5. Step 5: Solve for x
   x = 110,231,307.90/11,009.41
6. Step 6: Final answer
   x = 10,012.46