Finding the Fourth Proportional to 11,022.55, 15,211.23 and 5,986.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,022.55 : 15,211.23 = 5,986.81 : x
2. Step 2: Convert to fraction form
   11,022.55/15,211.23 = 5,986.81/x
3. Step 3: Cross multiply
   11,022.55x = 15,211.23 × 5,986.81
4. Step 4: Simplify right side
   11,022.55x = 91,066,743.88
5. Step 5: Solve for x
   x = 91,066,743.88/11,022.55
6. Step 6: Final answer
   x = 8,261.86