Finding the Fourth Proportional to 23,178.88, 31,986.84 and 12,568.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.88 : 31,986.84 = 12,568.50 : x
2. Step 2: Convert to fraction form
   23,178.88/31,986.84 = 12,568.50/x
3. Step 3: Cross multiply
   23,178.88x = 31,986.84 × 12,568.50
4. Step 4: Simplify right side
   23,178.88x = 402,026,598.54
5. Step 5: Solve for x
   x = 402,026,598.54/23,178.88
6. Step 6: Final answer
   x = 17,344.52