Finding the Fourth Proportional to 31,216.26, 43,078.42 and 17,069.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,216.26 : 43,078.42 = 17,069.06 : x
2. Step 2: Convert to fraction form
   31,216.26/43,078.42 = 17,069.06/x
3. Step 3: Cross multiply
   31,216.26x = 43,078.42 × 17,069.06
4. Step 4: Simplify right side
   31,216.26x = 735,308,135.69
5. Step 5: Solve for x
   x = 735,308,135.69/31,216.26
6. Step 6: Final answer
   x = 23,555.29