Finding the Fourth Proportional to 7,085.97, 10,625.31 and 3,188.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.97 : 10,625.31 = 3,188.25 : x
2. Step 2: Convert to fraction form
   7,085.97/10,625.31 = 3,188.25/x
3. Step 3: Cross multiply
   7,085.97x = 10,625.31 × 3,188.25
4. Step 4: Simplify right side
   7,085.97x = 33,876,144.61
5. Step 5: Solve for x
   x = 33,876,144.61/7,085.97
6. Step 6: Final answer
   x = 4,780.73