Finding the Fourth Proportional to 17,453.98, 26,196.06 and 9,139.81

Step by Step Solution

1. Step 1: Write the proportion equation
   17,453.98 : 26,196.06 = 9,139.81 : x
2. Step 2: Convert to fraction form
   17,453.98/26,196.06 = 9,139.81/x
3. Step 3: Cross multiply
   17,453.98x = 26,196.06 × 9,139.81
4. Step 4: Simplify right side
   17,453.98x = 239,427,011.15
5. Step 5: Solve for x
   x = 239,427,011.15/17,453.98
6. Step 6: Final answer
   x = 13,717.62