Finding the Fourth Proportional to 5,643.31, 8,477.94 and 3,981.26

Step by Step Solution

1. Step 1: Write the proportion equation
   5,643.31 : 8,477.94 = 3,981.26 : x
2. Step 2: Convert to fraction form
   5,643.31/8,477.94 = 3,981.26/x
3. Step 3: Cross multiply
   5,643.31x = 8,477.94 × 3,981.26
4. Step 4: Simplify right side
   5,643.31x = 33,752,849.45
5. Step 5: Solve for x
   x = 33,752,849.45/5,643.31
6. Step 6: Final answer
   x = 5,981.04