Finding the Fourth Proportional to 31,065.31, 42,870.83 and 17,635.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,065.31 : 42,870.83 = 17,635.31 : x
2. Step 2: Convert to fraction form
   31,065.31/42,870.83 = 17,635.31/x
3. Step 3: Cross multiply
   31,065.31x = 42,870.83 × 17,635.31
4. Step 4: Simplify right side
   31,065.31x = 756,040,377.01
5. Step 5: Solve for x
   x = 756,040,377.01/31,065.31
6. Step 6: Final answer
   x = 24,337.13