Finding the Fourth Proportional to 31,397.81, 43,328.85 and 17,969

Step by Step Solution

1. Step 1: Write the proportion equation
   31,397.81 : 43,328.85 = 17,969 : x
2. Step 2: Convert to fraction form
   31,397.81/43,328.85 = 17,969/x
3. Step 3: Cross multiply
   31,397.81x = 43,328.85 × 17,969
4. Step 4: Simplify right side
   31,397.81x = 778,576,105.65
5. Step 5: Solve for x
   x = 778,576,105.65/31,397.81
6. Step 6: Final answer
   x = 24,797.15