Finding the Fourth Proportional to 31,260.42, 43,139.45 and 17,114.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,260.42 : 43,139.45 = 17,114.18 : x
2. Step 2: Convert to fraction form
   31,260.42/43,139.45 = 17,114.18/x
3. Step 3: Cross multiply
   31,260.42x = 43,139.45 × 17,114.18
4. Step 4: Simplify right side
   31,260.42x = 738,296,139.49
5. Step 5: Solve for x
   x = 738,296,139.49/31,260.42
6. Step 6: Final answer
   x = 23,617.60