Finding the Fourth Proportional to 23,113.78, 31,896.96 and 12,503.38

Step by Step Solution

1. Step 1: Write the proportion equation
   23,113.78 : 31,896.96 = 12,503.38 : x
2. Step 2: Convert to fraction form
   23,113.78/31,896.96 = 12,503.38/x
3. Step 3: Cross multiply
   23,113.78x = 31,896.96 × 12,503.38
4. Step 4: Simplify right side
   23,113.78x = 398,819,811.72
5. Step 5: Solve for x
   x = 398,819,811.72/23,113.78
6. Step 6: Final answer
   x = 17,254.63