Finding the Fourth Proportional to 11,084.28, 16,608.72 and 7,758.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,084.28 : 16,608.72 = 7,758.84 : x
2. Step 2: Convert to fraction form
   11,084.28/16,608.72 = 7,758.84/x
3. Step 3: Cross multiply
   11,084.28x = 16,608.72 × 7,758.84
4. Step 4: Simplify right side
   11,084.28x = 128,864,401.08
5. Step 5: Solve for x
   x = 128,864,401.08/11,084.28
6. Step 6: Final answer
   x = 11,625.87