Finding the Fourth Proportional to 16,209, 22,372.56 and 10,557.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,209 : 22,372.56 = 10,557.84 : x
2. Step 2: Convert to fraction form
   16,209/22,372.56 = 10,557.84/x
3. Step 3: Cross multiply
   16,209x = 22,372.56 × 10,557.84
4. Step 4: Simplify right side
   16,209x = 236,205,908.87
5. Step 5: Solve for x
   x = 236,205,908.87/16,209
6. Step 6: Final answer
   x = 14,572.52