Finding the Fourth Proportional to 10,331.04, 14,256.86 and 5,615.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,331.04 : 14,256.86 = 5,615.31 : x
2. Step 2: Convert to fraction form
   10,331.04/14,256.86 = 5,615.31/x
3. Step 3: Cross multiply
   10,331.04x = 14,256.86 × 5,615.31
4. Step 4: Simplify right side
   10,331.04x = 80,056,660.45
5. Step 5: Solve for x
   x = 80,056,660.45/10,331.04
6. Step 6: Final answer
   x = 7,749.14