Finding the Fourth Proportional to 8,081.76, 12,117.78 and 3,084.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.76 : 12,117.78 = 3,084.47 : x
2. Step 2: Convert to fraction form
   8,081.76/12,117.78 = 3,084.47/x
3. Step 3: Cross multiply
   8,081.76x = 12,117.78 × 3,084.47
4. Step 4: Simplify right side
   8,081.76x = 37,376,913.73
5. Step 5: Solve for x
   x = 37,376,913.73/8,081.76
6. Step 6: Final answer
   x = 4,624.85