Finding the Fourth Proportional to 12,659.94, 17,446.05 and 9,116.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,659.94 : 17,446.05 = 9,116.46 : x
2. Step 2: Convert to fraction form
   12,659.94/17,446.05 = 9,116.46/x
3. Step 3: Cross multiply
   12,659.94x = 17,446.05 × 9,116.46
4. Step 4: Simplify right side
   12,659.94x = 159,046,216.98
5. Step 5: Solve for x
   x = 159,046,216.98/12,659.94
6. Step 6: Final answer
   x = 12,562.95