Finding the Fourth Proportional to 5,603.88, 8,392.86 and 5,409.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,603.88 : 8,392.86 = 5,409.48 : x
2. Step 2: Convert to fraction form
   5,603.88/8,392.86 = 5,409.48/x
3. Step 3: Cross multiply
   5,603.88x = 8,392.86 × 5,409.48
4. Step 4: Simplify right side
   5,603.88x = 45,401,008.31
5. Step 5: Solve for x
   x = 45,401,008.31/5,603.88
6. Step 6: Final answer
   x = 8,101.71