Finding the Fourth Proportional to 5,281.63, 7,932.71 and 3,889.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,281.63 : 7,932.71 = 3,889.47 : x
2. Step 2: Convert to fraction form
   5,281.63/7,932.71 = 3,889.47/x
3. Step 3: Cross multiply
   5,281.63x = 7,932.71 × 3,889.47
4. Step 4: Simplify right side
   5,281.63x = 30,854,037.56
5. Step 5: Solve for x
   x = 30,854,037.56/5,281.63
6. Step 6: Final answer
   x = 5,841.76