Finding the Fourth Proportional to 11,185.60, 16,745.52 and 7,842.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,185.60 : 16,745.52 = 7,842.22 : x
2. Step 2: Convert to fraction form
   11,185.60/16,745.52 = 7,842.22/x
3. Step 3: Cross multiply
   11,185.60x = 16,745.52 × 7,842.22
4. Step 4: Simplify right side
   11,185.60x = 131,322,051.85
5. Step 5: Solve for x
   x = 131,322,051.85/11,185.60
6. Step 6: Final answer
   x = 11,740.28