Finding the Fourth Proportional to 16,510, 22,784.12 and 9,886

Step by Step Solution

1. Step 1: Write the proportion equation
   16,510 : 22,784.12 = 9,886 : x
2. Step 2: Convert to fraction form
   16,510/22,784.12 = 9,886/x
3. Step 3: Cross multiply
   16,510x = 22,784.12 × 9,886
4. Step 4: Simplify right side
   16,510x = 225,243,810.32
5. Step 5: Solve for x
   x = 225,243,810.32/16,510
6. Step 6: Final answer
   x = 13,642.87