Finding the Fourth Proportional to 8,003.28, 12,003.55 and 2,158.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.28 : 12,003.55 = 2,158.52 : x
2. Step 2: Convert to fraction form
   8,003.28/12,003.55 = 2,158.52/x
3. Step 3: Cross multiply
   8,003.28x = 12,003.55 × 2,158.52
4. Step 4: Simplify right side
   8,003.28x = 25,909,953.79
5. Step 5: Solve for x
   x = 25,909,953.79/8,003.28
6. Step 6: Final answer
   x = 3,237.42