Finding the Fourth Proportional to 17,679.16, 24,386.52 and 13,896.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,679.16 : 24,386.52 = 13,896.28 : x
2. Step 2: Convert to fraction form
   17,679.16/24,386.52 = 13,896.28/x
3. Step 3: Cross multiply
   17,679.16x = 24,386.52 × 13,896.28
4. Step 4: Simplify right side
   17,679.16x = 338,881,910.15
5. Step 5: Solve for x
   x = 338,881,910.15/17,679.16
6. Step 6: Final answer
   x = 19,168.44