Finding the Fourth Proportional to 8,056.45, 12,081.78 and 2,790.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,056.45 : 12,081.78 = 2,790.03 : x
2. Step 2: Convert to fraction form
   8,056.45/12,081.78 = 2,790.03/x
3. Step 3: Cross multiply
   8,056.45x = 12,081.78 × 2,790.03
4. Step 4: Simplify right side
   8,056.45x = 33,708,528.65
5. Step 5: Solve for x
   x = 33,708,528.65/8,056.45
6. Step 6: Final answer
   x = 4,184.04