Finding the Fourth Proportional to 11,815.18, 17,716.61 and 5,573.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,815.18 : 17,716.61 = 5,573.51 : x
2. Step 2: Convert to fraction form
   11,815.18/17,716.61 = 5,573.51/x
3. Step 3: Cross multiply
   11,815.18x = 17,716.61 × 5,573.51
4. Step 4: Simplify right side
   11,815.18x = 98,743,586.55
5. Step 5: Solve for x
   x = 98,743,586.55/11,815.18
6. Step 6: Final answer
   x = 8,357.35