Finding the Fourth Proportional to 23,105.88, 31,886.10 and 12,495.51

Step by Step Solution

1. Step 1: Write the proportion equation
   23,105.88 : 31,886.10 = 12,495.51 : x
2. Step 2: Convert to fraction form
   23,105.88/31,886.10 = 12,495.51/x
3. Step 3: Cross multiply
   23,105.88x = 31,886.10 × 12,495.51
4. Step 4: Simplify right side
   23,105.88x = 398,433,081.41
5. Step 5: Solve for x
   x = 398,433,081.41/23,105.88
6. Step 6: Final answer
   x = 17,243.80