Finding the Fourth Proportional to 7,185.22, 10,755.55 and 3,890.14

Step by Step Solution

1. Step 1: Write the proportion equation
   7,185.22 : 10,755.55 = 3,890.14 : x
2. Step 2: Convert to fraction form
   7,185.22/10,755.55 = 3,890.14/x
3. Step 3: Cross multiply
   7,185.22x = 10,755.55 × 3,890.14
4. Step 4: Simplify right side
   7,185.22x = 41,840,573.25
5. Step 5: Solve for x
   x = 41,840,573.25/7,185.22
6. Step 6: Final answer
   x = 5,823.15