Finding the Fourth Proportional to 8,659.47, 12,987.34 and 2,736.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,659.47 : 12,987.34 = 2,736.82 : x
2. Step 2: Convert to fraction form
   8,659.47/12,987.34 = 2,736.82/x
3. Step 3: Cross multiply
   8,659.47x = 12,987.34 × 2,736.82
4. Step 4: Simplify right side
   8,659.47x = 35,544,011.86
5. Step 5: Solve for x
   x = 35,544,011.86/8,659.47
6. Step 6: Final answer
   x = 4,104.64