Finding the Fourth Proportional to 12,471.12, 17,205.72 and 8,230.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,471.12 : 17,205.72 = 8,230.14 : x
2. Step 2: Convert to fraction form
   12,471.12/17,205.72 = 8,230.14/x
3. Step 3: Cross multiply
   12,471.12x = 17,205.72 × 8,230.14
4. Step 4: Simplify right side
   12,471.12x = 141,605,484.40
5. Step 5: Solve for x
   x = 141,605,484.40/12,471.12
6. Step 6: Final answer
   x = 11,354.67