Finding the Fourth Proportional to 11,005.18, 15,187.20 and 5,969.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.18 : 15,187.20 = 5,969.46 : x
2. Step 2: Convert to fraction form
   11,005.18/15,187.20 = 5,969.46/x
3. Step 3: Cross multiply
   11,005.18x = 15,187.20 × 5,969.46
4. Step 4: Simplify right side
   11,005.18x = 90,659,382.91
5. Step 5: Solve for x
   x = 90,659,382.91/11,005.18
6. Step 6: Final answer
   x = 8,237.88