Finding the Fourth Proportional to 11,005.39, 15,187.39 and 5,969.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.39 : 15,187.39 = 5,969.59 : x
2. Step 2: Convert to fraction form
   11,005.39/15,187.39 = 5,969.59/x
3. Step 3: Cross multiply
   11,005.39x = 15,187.39 × 5,969.59
4. Step 4: Simplify right side
   11,005.39x = 90,662,385.69
5. Step 5: Solve for x
   x = 90,662,385.69/11,005.39
6. Step 6: Final answer
   x = 8,238.00