Finding the Fourth Proportional to 16,739, 23,100.30 and 9,287.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,739 : 23,100.30 = 9,287.48 : x
2. Step 2: Convert to fraction form
   16,739/23,100.30 = 9,287.48/x
3. Step 3: Cross multiply
   16,739x = 23,100.30 × 9,287.48
4. Step 4: Simplify right side
   16,739x = 214,543,574.24
5. Step 5: Solve for x
   x = 214,543,574.24/16,739
6. Step 6: Final answer
   x = 12,816.99