Finding the Fourth Proportional to 19,118.42, 28,624.47 and 14,424.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,118.42 : 28,624.47 = 14,424.27 : x
2. Step 2: Convert to fraction form
   19,118.42/28,624.47 = 14,424.27/x
3. Step 3: Cross multiply
   19,118.42x = 28,624.47 × 14,424.27
4. Step 4: Simplify right side
   19,118.42x = 412,887,083.89
5. Step 5: Solve for x
   x = 412,887,083.89/19,118.42
6. Step 6: Final answer
   x = 21,596.30