Finding the Fourth Proportional to 8,256.80, 12,386.17 and 2,994.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256.80 : 12,386.17 = 2,994.29 : x
2. Step 2: Convert to fraction form
   8,256.80/12,386.17 = 2,994.29/x
3. Step 3: Cross multiply
   8,256.80x = 12,386.17 × 2,994.29
4. Step 4: Simplify right side
   8,256.80x = 37,087,826.06
5. Step 5: Solve for x
   x = 37,087,826.06/8,256.80
6. Step 6: Final answer
   x = 4,491.79