Finding the Fourth Proportional to 11,085.33, 16,618.63 and 5,159.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.33 : 16,618.63 = 5,159.16 : x
2. Step 2: Convert to fraction form
   11,085.33/16,618.63 = 5,159.16/x
3. Step 3: Cross multiply
   11,085.33x = 16,618.63 × 5,159.16
4. Step 4: Simplify right side
   11,085.33x = 85,738,171.15
5. Step 5: Solve for x
   x = 85,738,171.15/11,085.33
6. Step 6: Final answer
   x = 7,734.38