Finding the Fourth Proportional to 12,996.06, 17,935.59 and 7,406.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996.06 : 17,935.59 = 7,406.94 : x
2. Step 2: Convert to fraction form
   12,996.06/17,935.59 = 7,406.94/x
3. Step 3: Cross multiply
   12,996.06x = 17,935.59 × 7,406.94
4. Step 4: Simplify right side
   12,996.06x = 132,847,838.99
5. Step 5: Solve for x
   x = 132,847,838.99/12,996.06
6. Step 6: Final answer
   x = 10,222.16