Finding the Fourth Proportional to 31,399.43, 43,331.29 and 17,059.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,399.43 : 43,331.29 = 17,059.14 : x
2. Step 2: Convert to fraction form
   31,399.43/43,331.29 = 17,059.14/x
3. Step 3: Cross multiply
   31,399.43x = 43,331.29 × 17,059.14
4. Step 4: Simplify right side
   31,399.43x = 739,194,499.84
5. Step 5: Solve for x
   x = 739,194,499.84/31,399.43
6. Step 6: Final answer
   x = 23,541.65