Finding the Fourth Proportional to 10,861.16, 16,288.50 and 3,839.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.16 : 16,288.50 = 3,839.88 : x
2. Step 2: Convert to fraction form
   10,861.16/16,288.50 = 3,839.88/x
3. Step 3: Cross multiply
   10,861.16x = 16,288.50 × 3,839.88
4. Step 4: Simplify right side
   10,861.16x = 62,545,885.38
5. Step 5: Solve for x
   x = 62,545,885.38/10,861.16
6. Step 6: Final answer
   x = 5,758.67