Finding the Fourth Proportional to 10,256.82, 15,382.18 and 2,859.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256.82 : 15,382.18 = 2,859.49 : x
2. Step 2: Convert to fraction form
   10,256.82/15,382.18 = 2,859.49/x
3. Step 3: Cross multiply
   10,256.82x = 15,382.18 × 2,859.49
4. Step 4: Simplify right side
   10,256.82x = 43,985,189.89
5. Step 5: Solve for x
   x = 43,985,189.89/10,256.82
6. Step 6: Final answer
   x = 4,288.38