Finding the Fourth Proportional to 5,181.69, 7,150.69 and 3,057.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.69 : 7,150.69 = 3,057.22 : x
2. Step 2: Convert to fraction form
   5,181.69/7,150.69 = 3,057.22/x
3. Step 3: Cross multiply
   5,181.69x = 7,150.69 × 3,057.22
4. Step 4: Simplify right side
   5,181.69x = 21,861,232.48
5. Step 5: Solve for x
   x = 21,861,232.48/5,181.69
6. Step 6: Final answer
   x = 4,218.94