Finding the Fourth Proportional to 10,875.98, 16,279.34 and 8,659.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.98 : 16,279.34 = 8,659.82 : x
2. Step 2: Convert to fraction form
   10,875.98/16,279.34 = 8,659.82/x
3. Step 3: Cross multiply
   10,875.98x = 16,279.34 × 8,659.82
4. Step 4: Simplify right side
   10,875.98x = 140,976,029.42
5. Step 5: Solve for x
   x = 140,976,029.42/10,875.98
6. Step 6: Final answer
   x = 12,962.15