Finding the Fourth Proportional to 23,119.47, 31,904.82 and 12,509.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,119.47 : 31,904.82 = 12,509.10 : x
2. Step 2: Convert to fraction form
   23,119.47/31,904.82 = 12,509.10/x
3. Step 3: Cross multiply
   23,119.47x = 31,904.82 × 12,509.10
4. Step 4: Simplify right side
   23,119.47x = 399,100,583.86
5. Step 5: Solve for x
   x = 399,100,583.86/23,119.47
6. Step 6: Final answer
   x = 17,262.53