Finding the Fourth Proportional to 23,086.45, 31,859.19 and 12,476.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,086.45 : 31,859.19 = 12,476.05 : x
2. Step 2: Convert to fraction form
   23,086.45/31,859.19 = 12,476.05/x
3. Step 3: Cross multiply
   23,086.45x = 31,859.19 × 12,476.05
4. Step 4: Simplify right side
   23,086.45x = 397,476,847.40
5. Step 5: Solve for x
   x = 397,476,847.40/23,086.45
6. Step 6: Final answer
   x = 17,216.89