Finding the Fourth Proportional to 8,103.29, 12,156.46 and 5,581.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.29 : 12,156.46 = 5,581.03 : x
2. Step 2: Convert to fraction form
   8,103.29/12,156.46 = 5,581.03/x
3. Step 3: Cross multiply
   8,103.29x = 12,156.46 × 5,581.03
4. Step 4: Simplify right side
   8,103.29x = 67,845,523.61
5. Step 5: Solve for x
   x = 67,845,523.61/8,103.29
6. Step 6: Final answer
   x = 8,372.59