Finding the Fourth Proportional to 10,712.16, 16,069.32 and 3,691.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,712.16 : 16,069.32 = 3,691.25 : x
2. Step 2: Convert to fraction form
   10,712.16/16,069.32 = 3,691.25/x
3. Step 3: Cross multiply
   10,712.16x = 16,069.32 × 3,691.25
4. Step 4: Simplify right side
   10,712.16x = 59,315,857.36
5. Step 5: Solve for x
   x = 59,315,857.36/10,712.16
6. Step 6: Final answer
   x = 5,537.25