Finding the Fourth Proportional to 23,124.10, 31,911.34 and 12,513.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,124.10 : 31,911.34 = 12,513.73 : x
2. Step 2: Convert to fraction form
   23,124.10/31,911.34 = 12,513.73/x
3. Step 3: Cross multiply
   23,124.10x = 31,911.34 × 12,513.73
4. Step 4: Simplify right side
   23,124.10x = 399,329,892.70
5. Step 5: Solve for x
   x = 399,329,892.70/23,124.10
6. Step 6: Final answer
   x = 17,268.99