Finding the Fourth Proportional to 8,356.50, 12,527.76 and 3,429.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,356.50 : 12,527.76 = 3,429.68 : x
2. Step 2: Convert to fraction form
   8,356.50/12,527.76 = 3,429.68/x
3. Step 3: Cross multiply
   8,356.50x = 12,527.76 × 3,429.68
4. Step 4: Simplify right side
   8,356.50x = 42,966,158.14
5. Step 5: Solve for x
   x = 42,966,158.14/8,356.50
6. Step 6: Final answer
   x = 5,141.65