Finding the Fourth Proportional to 4,059.12, 5,591.88 and 3,861.48

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059.12 : 5,591.88 = 3,861.48 : x
2. Step 2: Convert to fraction form
   4,059.12/5,591.88 = 3,861.48/x
3. Step 3: Cross multiply
   4,059.12x = 5,591.88 × 3,861.48
4. Step 4: Simplify right side
   4,059.12x = 21,592,932.78
5. Step 5: Solve for x
   x = 21,592,932.78/4,059.12
6. Step 6: Final answer
   x = 5,319.61