Finding the Fourth Proportional to 8,002.22, 12,003.55 and 2,158.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,002.22 : 12,003.55 = 2,158.82 : x
2. Step 2: Convert to fraction form
   8,002.22/12,003.55 = 2,158.82/x
3. Step 3: Cross multiply
   8,002.22x = 12,003.55 × 2,158.82
4. Step 4: Simplify right side
   8,002.22x = 25,913,443.79
5. Step 5: Solve for x
   x = 25,913,443.79/8,002.22
6. Step 6: Final answer
   x = 3,238.28