Finding the Fourth Proportional to 11,505.30, 17,219.55 and 8,049.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,505.30 : 17,219.55 = 8,049.30 : x
2. Step 2: Convert to fraction form
   11,505.30/17,219.55 = 8,049.30/x
3. Step 3: Cross multiply
   11,505.30x = 17,219.55 × 8,049.30
4. Step 4: Simplify right side
   11,505.30x = 138,605,323.82
5. Step 5: Solve for x
   x = 138,605,323.82/11,505.30
6. Step 6: Final answer
   x = 12,047.08