Finding the Fourth Proportional to 17,861.72, 24,615.18 and 13,083.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,861.72 : 24,615.18 = 13,083.12 : x
2. Step 2: Convert to fraction form
   17,861.72/24,615.18 = 13,083.12/x
3. Step 3: Cross multiply
   17,861.72x = 24,615.18 × 13,083.12
4. Step 4: Simplify right side
   17,861.72x = 322,043,353.76
5. Step 5: Solve for x
   x = 322,043,353.76/17,861.72
6. Step 6: Final answer
   x = 18,029.81