Finding the Fourth Proportional to 23,141.55, 31,931.92 and 13,069.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141.55 : 31,931.92 = 13,069.81 : x
2. Step 2: Convert to fraction form
   23,141.55/31,931.92 = 13,069.81/x
3. Step 3: Cross multiply
   23,141.55x = 31,931.92 × 13,069.81
4. Step 4: Simplify right side
   23,141.55x = 417,344,127.34
5. Step 5: Solve for x
   x = 417,344,127.34/23,141.55
6. Step 6: Final answer
   x = 18,034.41