Finding the Fourth Proportional to 10,331.56, 14,257.56 and 5,615.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,331.56 : 14,257.56 = 5,615.86 : x
2. Step 2: Convert to fraction form
   10,331.56/14,257.56 = 5,615.86/x
3. Step 3: Cross multiply
   10,331.56x = 14,257.56 × 5,615.86
4. Step 4: Simplify right side
   10,331.56x = 80,068,460.90
5. Step 5: Solve for x
   x = 80,068,460.90/10,331.56
6. Step 6: Final answer
   x = 7,749.89