Finding the Fourth Proportional to 17,097, 25,624.44 and 12,139.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,097 : 25,624.44 = 12,139.80 : x
2. Step 2: Convert to fraction form
   17,097/25,624.44 = 12,139.80/x
3. Step 3: Cross multiply
   17,097x = 25,624.44 × 12,139.80
4. Step 4: Simplify right side
   17,097x = 311,075,576.71
5. Step 5: Solve for x
   x = 311,075,576.71/17,097
6. Step 6: Final answer
   x = 18,194.75