Finding the Fourth Proportional to 31,311.37, 43,209.63 and 17,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,311.37 : 43,209.63 = 17,164.32 : x
2. Step 2: Convert to fraction form
   31,311.37/43,209.63 = 17,164.32/x
3. Step 3: Cross multiply
   31,311.37x = 43,209.63 × 17,164.32
4. Step 4: Simplify right side
   31,311.37x = 741,663,754.37
5. Step 5: Solve for x
   x = 741,663,754.37/31,311.37
6. Step 6: Final answer
   x = 23,686.72