Finding the Fourth Proportional to 10,829.72, 16,237.98 and 4,259

Step by Step Solution

1. Step 1: Write the proportion equation
   10,829.72 : 16,237.98 = 4,259 : x
2. Step 2: Convert to fraction form
   10,829.72/16,237.98 = 4,259/x
3. Step 3: Cross multiply
   10,829.72x = 16,237.98 × 4,259
4. Step 4: Simplify right side
   10,829.72x = 69,157,556.82
5. Step 5: Solve for x
   x = 69,157,556.82/10,829.72
6. Step 6: Final answer
   x = 6,385.90