Finding the Fourth Proportional to 11,518.69, 17,272.27 and 5,591.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,518.69 : 17,272.27 = 5,591.88 : x
2. Step 2: Convert to fraction form
   11,518.69/17,272.27 = 5,591.88/x
3. Step 3: Cross multiply
   11,518.69x = 17,272.27 × 5,591.88
4. Step 4: Simplify right side
   11,518.69x = 96,584,444.22
5. Step 5: Solve for x
   x = 96,584,444.22/11,518.69
6. Step 6: Final answer
   x = 8,385.02