Finding the Fourth Proportional to 10,716.72, 14,809.40 and 8,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,716.72 : 14,809.40 = 8,059.50 : x
2. Step 2: Convert to fraction form
   10,716.72/14,809.40 = 8,059.50/x
3. Step 3: Cross multiply
   10,716.72x = 14,809.40 × 8,059.50
4. Step 4: Simplify right side
   10,716.72x = 119,356,359.30
5. Step 5: Solve for x
   x = 119,356,359.30/10,716.72
6. Step 6: Final answer
   x = 11,137.40