Finding the Fourth Proportional to 12,026.66, 18,042.56 and 7,099.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,026.66 : 18,042.56 = 7,099.97 : x
2. Step 2: Convert to fraction form
   12,026.66/18,042.56 = 7,099.97/x
3. Step 3: Cross multiply
   12,026.66x = 18,042.56 × 7,099.97
4. Step 4: Simplify right side
   12,026.66x = 128,101,634.72
5. Step 5: Solve for x
   x = 128,101,634.72/12,026.66
6. Step 6: Final answer
   x = 10,651.47