Finding the Fourth Proportional to 11,279.49, 15,563.55 and 7,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,279.49 : 15,563.55 = 7,300.05 : x
2. Step 2: Convert to fraction form
   11,279.49/15,563.55 = 7,300.05/x
3. Step 3: Cross multiply
   11,279.49x = 15,563.55 × 7,300.05
4. Step 4: Simplify right side
   11,279.49x = 113,614,693.18
5. Step 5: Solve for x
   x = 113,614,693.18/11,279.49
6. Step 6: Final answer
   x = 10,072.68