Finding the Fourth Proportional to 8,441.31, 11,649.42 and 5,085.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,441.31 : 11,649.42 = 5,085.18 : x
2. Step 2: Convert to fraction form
   8,441.31/11,649.42 = 5,085.18/x
3. Step 3: Cross multiply
   8,441.31x = 11,649.42 × 5,085.18
4. Step 4: Simplify right side
   8,441.31x = 59,239,397.60
5. Step 5: Solve for x
   x = 59,239,397.60/8,441.31
6. Step 6: Final answer
   x = 7,017.79