Finding the Fourth Proportional to 11,366.84, 17,055.48 and 5,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,366.84 : 17,055.48 = 5,128.52 : x
2. Step 2: Convert to fraction form
   11,366.84/17,055.48 = 5,128.52/x
3. Step 3: Cross multiply
   11,366.84x = 17,055.48 × 5,128.52
4. Step 4: Simplify right side
   11,366.84x = 87,469,370.29
5. Step 5: Solve for x
   x = 87,469,370.29/11,366.84
6. Step 6: Final answer
   x = 7,695.14