Finding the Fourth Proportional to 16,293.58, 22,485.60 and 9,123.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,293.58 : 22,485.60 = 9,123.28 : x
2. Step 2: Convert to fraction form
   16,293.58/22,485.60 = 9,123.28/x
3. Step 3: Cross multiply
   16,293.58x = 22,485.60 × 9,123.28
4. Step 4: Simplify right side
   16,293.58x = 205,142,424.77
5. Step 5: Solve for x
   x = 205,142,424.77/16,293.58
6. Step 6: Final answer
   x = 12,590.38