Finding the Fourth Proportional to 12,719.12, 17,551.78 and 7,053.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.12 : 17,551.78 = 7,053.43 : x
2. Step 2: Convert to fraction form
   12,719.12/17,551.78 = 7,053.43/x
3. Step 3: Cross multiply
   12,719.12x = 17,551.78 × 7,053.43
4. Step 4: Simplify right side
   12,719.12x = 123,800,207.73
5. Step 5: Solve for x
   x = 123,800,207.73/12,719.12
6. Step 6: Final answer
   x = 9,733.39