Finding the Fourth Proportional to 19,491.71, 26,901.59 and 12,796.76

Step by Step Solution

1. Step 1: Write the proportion equation
   19,491.71 : 26,901.59 = 12,796.76 : x
2. Step 2: Convert to fraction form
   19,491.71/26,901.59 = 12,796.76/x
3. Step 3: Cross multiply
   19,491.71x = 26,901.59 × 12,796.76
4. Step 4: Simplify right side
   19,491.71x = 344,253,290.09
5. Step 5: Solve for x
   x = 344,253,290.09/19,491.71
6. Step 6: Final answer
   x = 17,661.52