Finding the Fourth Proportional to 6,783.24, 9,363.72 and 4,131.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,783.24 : 9,363.72 = 4,131.60 : x
2. Step 2: Convert to fraction form
   6,783.24/9,363.72 = 4,131.60/x
3. Step 3: Cross multiply
   6,783.24x = 9,363.72 × 4,131.60
4. Step 4: Simplify right side
   6,783.24x = 38,687,145.55
5. Step 5: Solve for x
   x = 38,687,145.55/6,783.24
6. Step 6: Final answer
   x = 5,703.34