Finding the Fourth Proportional to 11,279.37, 16,918.25 and 5,039.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,279.37 : 16,918.25 = 5,039.94 : x
2. Step 2: Convert to fraction form
   11,279.37/16,918.25 = 5,039.94/x
3. Step 3: Cross multiply
   11,279.37x = 16,918.25 × 5,039.94
4. Step 4: Simplify right side
   11,279.37x = 85,266,939.71
5. Step 5: Solve for x
   x = 85,266,939.71/11,279.37
6. Step 6: Final answer
   x = 7,559.55