Finding the Fourth Proportional to 17,178.30, 23,684.67 and 13,150.17

Step by Step Solution

1. Step 1: Write the proportion equation
   17,178.30 : 23,684.67 = 13,150.17 : x
2. Step 2: Convert to fraction form
   17,178.30/23,684.67 = 13,150.17/x
3. Step 3: Cross multiply
   17,178.30x = 23,684.67 × 13,150.17
4. Step 4: Simplify right side
   17,178.30x = 311,457,436.89
5. Step 5: Solve for x
   x = 311,457,436.89/17,178.30
6. Step 6: Final answer
   x = 18,130.86