Finding the Fourth Proportional to 31,321.34, 43,223.46 and 17,175.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,321.34 : 43,223.46 = 17,175.50 : x
2. Step 2: Convert to fraction form
   31,321.34/43,223.46 = 17,175.50/x
3. Step 3: Cross multiply
   31,321.34x = 43,223.46 × 17,175.50
4. Step 4: Simplify right side
   31,321.34x = 742,384,537.23
5. Step 5: Solve for x
   x = 742,384,537.23/31,321.34
6. Step 6: Final answer
   x = 23,702.20