Finding the Fourth Proportional to 12,562.60, 17,338.79 and 8,313.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,562.60 : 17,338.79 = 8,313.74 : x
2. Step 2: Convert to fraction form
   12,562.60/17,338.79 = 8,313.74/x
3. Step 3: Cross multiply
   12,562.60x = 17,338.79 × 8,313.74
4. Step 4: Simplify right side
   12,562.60x = 144,150,150.41
5. Step 5: Solve for x
   x = 144,150,150.41/12,562.60
6. Step 6: Final answer
   x = 11,474.55