Finding the Fourth Proportional to 31,315.46, 43,218.06 and 17,171.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,315.46 : 43,218.06 = 17,171.06 : x
2. Step 2: Convert to fraction form
   31,315.46/43,218.06 = 17,171.06/x
3. Step 3: Cross multiply
   31,315.46x = 43,218.06 × 17,171.06
4. Step 4: Simplify right side
   31,315.46x = 742,099,901.34
5. Step 5: Solve for x
   x = 742,099,901.34/31,315.46
6. Step 6: Final answer
   x = 23,697.56