Finding the Fourth Proportional to 14,002.56, 19,320.72 and 10,644.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,002.56 : 19,320.72 = 10,644.48 : x
2. Step 2: Convert to fraction form
   14,002.56/19,320.72 = 10,644.48/x
3. Step 3: Cross multiply
   14,002.56x = 19,320.72 × 10,644.48
4. Step 4: Simplify right side
   14,002.56x = 205,659,017.63
5. Step 5: Solve for x
   x = 205,659,017.63/14,002.56
6. Step 6: Final answer
   x = 14,687.24