Finding the Fourth Proportional to 10,331.16, 14,256.87 and 5,615.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,331.16 : 14,256.87 = 5,615.34 : x
2. Step 2: Convert to fraction form
   10,331.16/14,256.87 = 5,615.34/x
3. Step 3: Cross multiply
   10,331.16x = 14,256.87 × 5,615.34
4. Step 4: Simplify right side
   10,331.16x = 80,057,172.39
5. Step 5: Solve for x
   x = 80,057,172.39/10,331.16
6. Step 6: Final answer
   x = 7,749.10