Finding the Fourth Proportional to 31,166.28, 43,009.56 and 17,019.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,166.28 : 43,009.56 = 17,019.18 : x
2. Step 2: Convert to fraction form
   31,166.28/43,009.56 = 17,019.18/x
3. Step 3: Cross multiply
   31,166.28x = 43,009.56 × 17,019.18
4. Step 4: Simplify right side
   31,166.28x = 731,987,443.36
5. Step 5: Solve for x
   x = 731,987,443.36/31,166.28
6. Step 6: Final answer
   x = 23,486.52