Finding the Fourth Proportional to 5,648.88, 7,795.86 and 3,131.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648.88 : 7,795.86 = 3,131.81 : x
2. Step 2: Convert to fraction form
   5,648.88/7,795.86 = 3,131.81/x
3. Step 3: Cross multiply
   5,648.88x = 7,795.86 × 3,131.81
4. Step 4: Simplify right side
   5,648.88x = 24,415,113.33
5. Step 5: Solve for x
   x = 24,415,113.33/5,648.88
6. Step 6: Final answer
   x = 4,322.12