Finding the Fourth Proportional to 23,124.29, 31,911.62 and 12,513.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,124.29 : 31,911.62 = 12,513.92 : x
2. Step 2: Convert to fraction form
   23,124.29/31,911.62 = 12,513.92/x
3. Step 3: Cross multiply
   23,124.29x = 31,911.62 × 12,513.92
4. Step 4: Simplify right side
   23,124.29x = 399,339,523.89
5. Step 5: Solve for x
   x = 399,339,523.89/23,124.29
6. Step 6: Final answer
   x = 17,269.27