Finding the Fourth Proportional to 10,615.15, 14,648.04 and 6,137.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,615.15 : 14,648.04 = 6,137.88 : x
2. Step 2: Convert to fraction form
   10,615.15/14,648.04 = 6,137.88/x
3. Step 3: Cross multiply
   10,615.15x = 14,648.04 × 6,137.88
4. Step 4: Simplify right side
   10,615.15x = 89,907,856.83
5. Step 5: Solve for x
   x = 89,907,856.83/10,615.15
6. Step 6: Final answer
   x = 8,469.77