Finding the Fourth Proportional to 14,300.88, 21,456.72 and 5,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.88 : 21,456.72 = 5,986.50 : x
2. Step 2: Convert to fraction form
   14,300.88/21,456.72 = 5,986.50/x
3. Step 3: Cross multiply
   14,300.88x = 21,456.72 × 5,986.50
4. Step 4: Simplify right side
   14,300.88x = 128,450,654.28
5. Step 5: Solve for x
   x = 128,450,654.28/14,300.88
6. Step 6: Final answer
   x = 8,982.01