Finding the Fourth Proportional to 17,674.30, 26,409.39 and 13,371.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,674.30 : 26,409.39 = 13,371.83 : x
2. Step 2: Convert to fraction form
   17,674.30/26,409.39 = 13,371.83/x
3. Step 3: Cross multiply
   17,674.30x = 26,409.39 × 13,371.83
4. Step 4: Simplify right side
   17,674.30x = 353,142,014.10
5. Step 5: Solve for x
   x = 353,142,014.10/17,674.30
6. Step 6: Final answer
   x = 19,980.54