Finding the Fourth Proportional to 31,308.67, 43,205.71 and 17,161.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,308.67 : 43,205.71 = 17,161.48 : x
2. Step 2: Convert to fraction form
   31,308.67/43,205.71 = 17,161.48/x
3. Step 3: Cross multiply
   31,308.67x = 43,205.71 × 17,161.48
4. Step 4: Simplify right side
   31,308.67x = 741,473,928.05
5. Step 5: Solve for x
   x = 741,473,928.05/31,308.67
6. Step 6: Final answer
   x = 23,682.70