Finding the Fourth Proportional to 22,821.97, 31,493.20 and 12,748.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,821.97 : 31,493.20 = 12,748.41 : x
2. Step 2: Convert to fraction form
   22,821.97/31,493.20 = 12,748.41/x
3. Step 3: Cross multiply
   22,821.97x = 31,493.20 × 12,748.41
4. Step 4: Simplify right side
   22,821.97x = 401,488,225.81
5. Step 5: Solve for x
   x = 401,488,225.81/22,821.97
6. Step 6: Final answer
   x = 17,592.18