Finding the Fourth Proportional to 5,649.86, 7,796.82 and 3,131.99

Step by Step Solution

1. Step 1: Write the proportion equation
   5,649.86 : 7,796.82 = 3,131.99 : x
2. Step 2: Convert to fraction form
   5,649.86/7,796.82 = 3,131.99/x
3. Step 3: Cross multiply
   5,649.86x = 7,796.82 × 3,131.99
4. Step 4: Simplify right side
   5,649.86x = 24,419,562.27
5. Step 5: Solve for x
   x = 24,419,562.27/5,649.86
6. Step 6: Final answer
   x = 4,322.15