Finding the Fourth Proportional to 11,723.69, 17,591.68 and 5,154.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,723.69 : 17,591.68 = 5,154.49 : x
2. Step 2: Convert to fraction form
   11,723.69/17,591.68 = 5,154.49/x
3. Step 3: Cross multiply
   11,723.69x = 17,591.68 × 5,154.49
4. Step 4: Simplify right side
   11,723.69x = 90,676,068.12
5. Step 5: Solve for x
   x = 90,676,068.12/11,723.69
6. Step 6: Final answer
   x = 7,734.43