Finding the Fourth Proportional to 11,561.28, 17,335.52 and 5,401.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,561.28 : 17,335.52 = 5,401.92 : x
2. Step 2: Convert to fraction form
   11,561.28/17,335.52 = 5,401.92/x
3. Step 3: Cross multiply
   11,561.28x = 17,335.52 × 5,401.92
4. Step 4: Simplify right side
   11,561.28x = 93,645,092.20
5. Step 5: Solve for x
   x = 93,645,092.20/11,561.28
6. Step 6: Final answer
   x = 8,099.89