Finding the Fourth Proportional to 23,178.45, 31,986.33 and 12,568.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.45 : 31,986.33 = 12,568.05 : x
2. Step 2: Convert to fraction form
   23,178.45/31,986.33 = 12,568.05/x
3. Step 3: Cross multiply
   23,178.45x = 31,986.33 × 12,568.05
4. Step 4: Simplify right side
   23,178.45x = 402,005,794.76
5. Step 5: Solve for x
   x = 402,005,794.76/23,178.45
6. Step 6: Final answer
   x = 17,343.95