Finding the Fourth Proportional to 5,581.91, 7,699.46 and 4,253.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,581.91 : 7,699.46 = 4,253.31 : x
2. Step 2: Convert to fraction form
   5,581.91/7,699.46 = 4,253.31/x
3. Step 3: Cross multiply
   5,581.91x = 7,699.46 × 4,253.31
4. Step 4: Simplify right side
   5,581.91x = 32,748,168.95
5. Step 5: Solve for x
   x = 32,748,168.95/5,581.91
6. Step 6: Final answer
   x = 5,866.84