Finding the Fourth Proportional to 8,300.80, 12,451.76 and 3,370.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.80 : 12,451.76 = 3,370.40 : x
2. Step 2: Convert to fraction form
   8,300.80/12,451.76 = 3,370.40/x
3. Step 3: Cross multiply
   8,300.80x = 12,451.76 × 3,370.40
4. Step 4: Simplify right side
   8,300.80x = 41,967,411.90
5. Step 5: Solve for x
   x = 41,967,411.90/8,300.80
6. Step 6: Final answer
   x = 5,055.83