Finding the Fourth Proportional to 23,145.75, 31,943.10 and 13,076.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,145.75 : 31,943.10 = 13,076.03 : x
2. Step 2: Convert to fraction form
   23,145.75/31,943.10 = 13,076.03/x
3. Step 3: Cross multiply
   23,145.75x = 31,943.10 × 13,076.03
4. Step 4: Simplify right side
   23,145.75x = 417,689,024.61
5. Step 5: Solve for x
   x = 417,689,024.61/23,145.75
6. Step 6: Final answer
   x = 18,046.04