Finding the Fourth Proportional to 14,843.34, 20,483.91 and 8,129.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,843.34 : 20,483.91 = 8,129.59 : x
2. Step 2: Convert to fraction form
   14,843.34/20,483.91 = 8,129.59/x
3. Step 3: Cross multiply
   14,843.34x = 20,483.91 × 8,129.59
4. Step 4: Simplify right side
   14,843.34x = 166,525,789.90
5. Step 5: Solve for x
   x = 166,525,789.90/14,843.34
6. Step 6: Final answer
   x = 11,218.89