Finding the Fourth Proportional to 8,084.76, 12,128.76 and 2,538.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,084.76 : 12,128.76 = 2,538.96 : x
2. Step 2: Convert to fraction form
   8,084.76/12,128.76 = 2,538.96/x
3. Step 3: Cross multiply
   8,084.76x = 12,128.76 × 2,538.96
4. Step 4: Simplify right side
   8,084.76x = 30,794,436.49
5. Step 5: Solve for x
   x = 30,794,436.49/8,084.76
6. Step 6: Final answer
   x = 3,808.95