Finding the Fourth Proportional to 22,491.34, 31,007.01 and 16,123.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,491.34 : 31,007.01 = 16,123.12 : x
2. Step 2: Convert to fraction form
   22,491.34/31,007.01 = 16,123.12/x
3. Step 3: Cross multiply
   22,491.34x = 31,007.01 × 16,123.12
4. Step 4: Simplify right side
   22,491.34x = 499,929,743.07
5. Step 5: Solve for x
   x = 499,929,743.07/22,491.34
6. Step 6: Final answer
   x = 22,227.65