Finding the Fourth Proportional to 7,118.61, 9,809.69 and 5,441.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,118.61 : 9,809.69 = 5,441.91 : x
2. Step 2: Convert to fraction form
   7,118.61/9,809.69 = 5,441.91/x
3. Step 3: Cross multiply
   7,118.61x = 9,809.69 × 5,441.91
4. Step 4: Simplify right side
   7,118.61x = 53,383,422.90
5. Step 5: Solve for x
   x = 53,383,422.90/7,118.61
6. Step 6: Final answer
   x = 7,499.14