Finding the Fourth Proportional to 14,386.94, 21,582.24 and 3,998.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,386.94 : 21,582.24 = 3,998.69 : x
2. Step 2: Convert to fraction form
   14,386.94/21,582.24 = 3,998.69/x
3. Step 3: Cross multiply
   14,386.94x = 21,582.24 × 3,998.69
4. Step 4: Simplify right side
   14,386.94x = 86,300,687.27
5. Step 5: Solve for x
   x = 86,300,687.27/14,386.94
6. Step 6: Final answer
   x = 5,998.54