Finding the Fourth Proportional to 11,841.55, 17,755.78 and 7,449.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,841.55 : 17,755.78 = 7,449.61 : x
2. Step 2: Convert to fraction form
   11,841.55/17,755.78 = 7,449.61/x
3. Step 3: Cross multiply
   11,841.55x = 17,755.78 × 7,449.61
4. Step 4: Simplify right side
   11,841.55x = 132,273,636.25
5. Step 5: Solve for x
   x = 132,273,636.25/11,841.55
6. Step 6: Final answer
   x = 11,170.30