Finding the Fourth Proportional to 31,168.04, 43,011.96 and 17,021.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,168.04 : 43,011.96 = 17,021.12 : x
2. Step 2: Convert to fraction form
   31,168.04/43,011.96 = 17,021.12/x
3. Step 3: Cross multiply
   31,168.04x = 43,011.96 × 17,021.12
4. Step 4: Simplify right side
   31,168.04x = 732,111,732.60
5. Step 5: Solve for x
   x = 732,111,732.60/31,168.04
6. Step 6: Final answer
   x = 23,489.18