Finding the Fourth Proportional to 22,723.68, 31,350.55 and 13,158.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,723.68 : 31,350.55 = 13,158.34 : x
2. Step 2: Convert to fraction form
   22,723.68/31,350.55 = 13,158.34/x
3. Step 3: Cross multiply
   22,723.68x = 31,350.55 × 13,158.34
4. Step 4: Simplify right side
   22,723.68x = 412,521,196.09
5. Step 5: Solve for x
   x = 412,521,196.09/22,723.68
6. Step 6: Final answer
   x = 18,153.80