Finding the Fourth Proportional to 22,800.37, 31,461.69 and 12,729.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,800.37 : 31,461.69 = 12,729.37 : x
2. Step 2: Convert to fraction form
   22,800.37/31,461.69 = 12,729.37/x
3. Step 3: Cross multiply
   22,800.37x = 31,461.69 × 12,729.37
4. Step 4: Simplify right side
   22,800.37x = 400,487,492.84
5. Step 5: Solve for x
   x = 400,487,492.84/22,800.37
6. Step 6: Final answer
   x = 17,564.96