Finding the Fourth Proportional to 22,468.76, 31,009.82 and 13,040.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468.76 : 31,009.82 = 13,040.28 : x
2. Step 2: Convert to fraction form
   22,468.76/31,009.82 = 13,040.28/x
3. Step 3: Cross multiply
   22,468.76x = 31,009.82 × 13,040.28
4. Step 4: Simplify right side
   22,468.76x = 404,376,735.55
5. Step 5: Solve for x
   x = 404,376,735.55/22,468.76
6. Step 6: Final answer
   x = 17,997.29