Finding the Fourth Proportional to 23,178.42, 31,986.06 and 12,568.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.42 : 31,986.06 = 12,568.08 : x
2. Step 2: Convert to fraction form
   23,178.42/31,986.06 = 12,568.08/x
3. Step 3: Cross multiply
   23,178.42x = 31,986.06 × 12,568.08
4. Step 4: Simplify right side
   23,178.42x = 402,003,360.96
5. Step 5: Solve for x
   x = 402,003,360.96/23,178.42
6. Step 6: Final answer
   x = 17,343.86