Finding the Fourth Proportional to 23,158.84, 31,951.56 and 13,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.84 : 31,951.56 = 13,086.04 : x
2. Step 2: Convert to fraction form
   23,158.84/31,951.56 = 13,086.04/x
3. Step 3: Cross multiply
   23,158.84x = 31,951.56 × 13,086.04
4. Step 4: Simplify right side
   23,158.84x = 418,119,392.22
5. Step 5: Solve for x
   x = 418,119,392.22/23,158.84
6. Step 6: Final answer
   x = 18,054.42