Finding the Fourth Proportional to 5,513.61, 8,256.06 and 4,333.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.61 : 8,256.06 = 4,333.31 : x
2. Step 2: Convert to fraction form
   5,513.61/8,256.06 = 4,333.31/x
3. Step 3: Cross multiply
   5,513.61x = 8,256.06 × 4,333.31
4. Step 4: Simplify right side
   5,513.61x = 35,776,067.36
5. Step 5: Solve for x
   x = 35,776,067.36/5,513.61
6. Step 6: Final answer
   x = 6,488.68