Finding the Fourth Proportional to 17,120.29, 23,617.15 and 10,836.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,120.29 : 23,617.15 = 10,836.31 : x
2. Step 2: Convert to fraction form
   17,120.29/23,617.15 = 10,836.31/x
3. Step 3: Cross multiply
   17,120.29x = 23,617.15 × 10,836.31
4. Step 4: Simplify right side
   17,120.29x = 255,922,758.72
5. Step 5: Solve for x
   x = 255,922,758.72/17,120.29
6. Step 6: Final answer
   x = 14,948.51