Finding the Fourth Proportional to 10,517.53, 15,774.07 and 3,944.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,517.53 : 15,774.07 = 3,944.20 : x
2. Step 2: Convert to fraction form
   10,517.53/15,774.07 = 3,944.20/x
3. Step 3: Cross multiply
   10,517.53x = 15,774.07 × 3,944.20
4. Step 4: Simplify right side
   10,517.53x = 62,216,086.89
5. Step 5: Solve for x
   x = 62,216,086.89/10,517.53
6. Step 6: Final answer
   x = 5,915.47