Finding the Fourth Proportional to 16,123.92, 22,340.61 and 15,774

Step by Step Solution

1. Step 1: Write the proportion equation
   16,123.92 : 22,340.61 = 15,774 : x
2. Step 2: Convert to fraction form
   16,123.92/22,340.61 = 15,774/x
3. Step 3: Cross multiply
   16,123.92x = 22,340.61 × 15,774
4. Step 4: Simplify right side
   16,123.92x = 352,400,782.14
5. Step 5: Solve for x
   x = 352,400,782.14/16,123.92
6. Step 6: Final answer
   x = 21,855.78