Finding the Fourth Proportional to 14,451.57, 21,681.72 and 10,242.96

Step by Step Solution

1. Step 1: Write the proportion equation
   14,451.57 : 21,681.72 = 10,242.96 : x
2. Step 2: Convert to fraction form
   14,451.57/21,681.72 = 10,242.96/x
3. Step 3: Cross multiply
   14,451.57x = 21,681.72 × 10,242.96
4. Step 4: Simplify right side
   14,451.57x = 222,084,990.69
5. Step 5: Solve for x
   x = 222,084,990.69/14,451.57
6. Step 6: Final answer
   x = 15,367.53