Finding the Fourth Proportional to 23,160.05, 31,960.04 and 13,088.27

Step by Step Solution

1. Step 1: Write the proportion equation
   23,160.05 : 31,960.04 = 13,088.27 : x
2. Step 2: Convert to fraction form
   23,160.05/31,960.04 = 13,088.27/x
3. Step 3: Cross multiply
   23,160.05x = 31,960.04 × 13,088.27
4. Step 4: Simplify right side
   23,160.05x = 418,301,527.34
5. Step 5: Solve for x
   x = 418,301,527.34/23,160.05
6. Step 6: Final answer
   x = 18,061.34