Finding the Fourth Proportional to 12,515.30, 17,274.03 and 8,267.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,515.30 : 17,274.03 = 8,267.12 : x
2. Step 2: Convert to fraction form
   12,515.30/17,274.03 = 8,267.12/x
3. Step 3: Cross multiply
   12,515.30x = 17,274.03 × 8,267.12
4. Step 4: Simplify right side
   12,515.30x = 142,806,478.89
5. Step 5: Solve for x
   x = 142,806,478.89/12,515.30
6. Step 6: Final answer
   x = 11,410.55