Finding the Fourth Proportional to 16,518, 24,780.24 and 7,284

Step by Step Solution

1. Step 1: Write the proportion equation
   16,518 : 24,780.24 = 7,284 : x
2. Step 2: Convert to fraction form
   16,518/24,780.24 = 7,284/x
3. Step 3: Cross multiply
   16,518x = 24,780.24 × 7,284
4. Step 4: Simplify right side
   16,518x = 180,499,268.16
5. Step 5: Solve for x
   x = 180,499,268.16/16,518
6. Step 6: Final answer
   x = 10,927.43