Finding the Fourth Proportional to 11,053.82, 15,259.74 and 7,279.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,053.82 : 15,259.74 = 7,279.40 : x
2. Step 2: Convert to fraction form
   11,053.82/15,259.74 = 7,279.40/x
3. Step 3: Cross multiply
   11,053.82x = 15,259.74 × 7,279.40
4. Step 4: Simplify right side
   11,053.82x = 111,081,751.36
5. Step 5: Solve for x
   x = 111,081,751.36/11,053.82
6. Step 6: Final answer
   x = 10,049.17