Finding the Fourth Proportional to 16,424.31, 22,665.55 and 8,870.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,424.31 : 22,665.55 = 8,870.64 : x
2. Step 2: Convert to fraction form
   16,424.31/22,665.55 = 8,870.64/x
3. Step 3: Cross multiply
   16,424.31x = 22,665.55 × 8,870.64
4. Step 4: Simplify right side
   16,424.31x = 201,058,030.54
5. Step 5: Solve for x
   x = 201,058,030.54/16,424.31
6. Step 6: Final answer
   x = 12,241.49