Finding the Fourth Proportional to 23,107, 31,887.52 and 12,496.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,107 : 31,887.52 = 12,496.60 : x
2. Step 2: Convert to fraction form
   23,107/31,887.52 = 12,496.60/x
3. Step 3: Cross multiply
   23,107x = 31,887.52 × 12,496.60
4. Step 4: Simplify right side
   23,107x = 398,485,582.43
5. Step 5: Solve for x
   x = 398,485,582.43/23,107
6. Step 6: Final answer
   x = 17,245.23