Finding the Fourth Proportional to 11,028.72, 15,219.57 and 5,992.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,028.72 : 15,219.57 = 5,992.91 : x
2. Step 2: Convert to fraction form
   11,028.72/15,219.57 = 5,992.91/x
3. Step 3: Cross multiply
   11,028.72x = 15,219.57 × 5,992.91
4. Step 4: Simplify right side
   11,028.72x = 91,209,513.25
5. Step 5: Solve for x
   x = 91,209,513.25/11,028.72
6. Step 6: Final answer
   x = 8,270.18