Finding the Fourth Proportional to 14,321.35, 21,456.61 and 5,983.02

Step by Step Solution

1. Step 1: Write the proportion equation
   14,321.35 : 21,456.61 = 5,983.02 : x
2. Step 2: Convert to fraction form
   14,321.35/21,456.61 = 5,983.02/x
3. Step 3: Cross multiply
   14,321.35x = 21,456.61 × 5,983.02
4. Step 4: Simplify right side
   14,321.35x = 128,375,280.60
5. Step 5: Solve for x
   x = 128,375,280.60/14,321.35
6. Step 6: Final answer
   x = 8,963.91