Finding the Fourth Proportional to 8,002.08, 12,003.16 and 2,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,002.08 : 12,003.16 = 2,158.72 : x
2. Step 2: Convert to fraction form
   8,002.08/12,003.16 = 2,158.72/x
3. Step 3: Cross multiply
   8,002.08x = 12,003.16 × 2,158.72
4. Step 4: Simplify right side
   8,002.08x = 25,911,461.56
5. Step 5: Solve for x
   x = 25,911,461.56/8,002.08
6. Step 6: Final answer
   x = 3,238.09