Finding the Fourth Proportional to 31,428.69, 43,372.35 and 17,089.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,428.69 : 43,372.35 = 17,089.37 : x
2. Step 2: Convert to fraction form
   31,428.69/43,372.35 = 17,089.37/x
3. Step 3: Cross multiply
   31,428.69x = 43,372.35 × 17,089.37
4. Step 4: Simplify right side
   31,428.69x = 741,205,920.06
5. Step 5: Solve for x
   x = 741,205,920.06/31,428.69
6. Step 6: Final answer
   x = 23,583.74