Finding the Fourth Proportional to 8,043.32, 12,072.78 and 3,886.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,043.32 : 12,072.78 = 3,886.31 : x
2. Step 2: Convert to fraction form
   8,043.32/12,072.78 = 3,886.31/x
3. Step 3: Cross multiply
   8,043.32x = 12,072.78 × 3,886.31
4. Step 4: Simplify right side
   8,043.32x = 46,918,595.82
5. Step 5: Solve for x
   x = 46,918,595.82/8,043.32
6. Step 6: Final answer
   x = 5,833.24