Finding the Fourth Proportional to 12,031.30, 18,127.18 and 10,862.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,031.30 : 18,127.18 = 10,862.62 : x
2. Step 2: Convert to fraction form
   12,031.30/18,127.18 = 10,862.62/x
3. Step 3: Cross multiply
   12,031.30x = 18,127.18 × 10,862.62
4. Step 4: Simplify right side
   12,031.30x = 196,908,668.01
5. Step 5: Solve for x
   x = 196,908,668.01/12,031.30
6. Step 6: Final answer
   x = 16,366.37