Finding the Fourth Proportional to 16,215.89, 22,374.77 and 9,923.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,215.89 : 22,374.77 = 9,923.81 : x
2. Step 2: Convert to fraction form
   16,215.89/22,374.77 = 9,923.81/x
3. Step 3: Cross multiply
   16,215.89x = 22,374.77 × 9,923.81
4. Step 4: Simplify right side
   16,215.89x = 222,042,916.65
5. Step 5: Solve for x
   x = 222,042,916.65/16,215.89
6. Step 6: Final answer
   x = 13,692.92