Finding the Fourth Proportional to 23,157.89, 31,924.42 and 15,186.27

Step by Step Solution

1. Step 1: Write the proportion equation
   23,157.89 : 31,924.42 = 15,186.27 : x
2. Step 2: Convert to fraction form
   23,157.89/31,924.42 = 15,186.27/x
3. Step 3: Cross multiply
   23,157.89x = 31,924.42 × 15,186.27
4. Step 4: Simplify right side
   23,157.89x = 484,812,861.71
5. Step 5: Solve for x
   x = 484,812,861.71/23,157.89
6. Step 6: Final answer
   x = 20,935.11