Finding the Fourth Proportional to 10,331.52, 14,257.50 and 5,615.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,331.52 : 14,257.50 = 5,615.80 : x
2. Step 2: Convert to fraction form
   10,331.52/14,257.50 = 5,615.80/x
3. Step 3: Cross multiply
   10,331.52x = 14,257.50 × 5,615.80
4. Step 4: Simplify right side
   10,331.52x = 80,067,243.39
5. Step 5: Solve for x
   x = 80,067,243.39/10,331.52
6. Step 6: Final answer
   x = 7,749.81