Finding the Fourth Proportional to 22,807.89, 31,474.58 and 12,736.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,807.89 : 31,474.58 = 12,736.49 : x
2. Step 2: Convert to fraction form
   22,807.89/31,474.58 = 12,736.49/x
3. Step 3: Cross multiply
   22,807.89x = 31,474.58 × 12,736.49
4. Step 4: Simplify right side
   22,807.89x = 400,875,452.37
5. Step 5: Solve for x
   x = 400,875,452.37/22,807.89
6. Step 6: Final answer
   x = 17,576.17