Finding the Fourth Proportional to 16,210.45, 24,309.78 and 5,677.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,210.45 : 24,309.78 = 5,677.57 : x
2. Step 2: Convert to fraction form
   16,210.45/24,309.78 = 5,677.57/x
3. Step 3: Cross multiply
   16,210.45x = 24,309.78 × 5,677.57
4. Step 4: Simplify right side
   16,210.45x = 138,020,477.63
5. Step 5: Solve for x
   x = 138,020,477.63/16,210.45
6. Step 6: Final answer
   x = 8,514.29