Finding the Fourth Proportional to 16,100.65, 22,218.78 and 10,140.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,100.65 : 22,218.78 = 10,140.18 : x
2. Step 2: Convert to fraction form
   16,100.65/22,218.78 = 10,140.18/x
3. Step 3: Cross multiply
   16,100.65x = 22,218.78 × 10,140.18
4. Step 4: Simplify right side
   16,100.65x = 225,302,428.58
5. Step 5: Solve for x
   x = 225,302,428.58/16,100.65
6. Step 6: Final answer
   x = 13,993.37