Finding the Fourth Proportional to 5,411.83, 8,111.67 and 3,541.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,411.83 : 8,111.67 = 3,541.31 : x
2. Step 2: Convert to fraction form
   5,411.83/8,111.67 = 3,541.31/x
3. Step 3: Cross multiply
   5,411.83x = 8,111.67 × 3,541.31
4. Step 4: Simplify right side
   5,411.83x = 28,725,938.09
5. Step 5: Solve for x
   x = 28,725,938.09/5,411.83
6. Step 6: Final answer
   x = 5,307.99