Finding the Fourth Proportional to 31,429.31, 43,372.76 and 17,282.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,429.31 : 43,372.76 = 17,282.25 : x
2. Step 2: Convert to fraction form
   31,429.31/43,372.76 = 17,282.25/x
3. Step 3: Cross multiply
   31,429.31x = 43,372.76 × 17,282.25
4. Step 4: Simplify right side
   31,429.31x = 749,578,795.10
5. Step 5: Solve for x
   x = 749,578,795.10/31,429.31
6. Step 6: Final answer
   x = 23,849.68