Finding the Fourth Proportional to 10,861.32, 14,986.53 and 6,144.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.32 : 14,986.53 = 6,144.69 : x
2. Step 2: Convert to fraction form
   10,861.32/14,986.53 = 6,144.69/x
3. Step 3: Cross multiply
   10,861.32x = 14,986.53 × 6,144.69
4. Step 4: Simplify right side
   10,861.32x = 92,087,581.03
5. Step 5: Solve for x
   x = 92,087,581.03/10,861.32
6. Step 6: Final answer
   x = 8,478.49