Finding the Fourth Proportional to 31,133.70, 42,965.37 and 17,703.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,133.70 : 42,965.37 = 17,703.30 : x
2. Step 2: Convert to fraction form
   31,133.70/42,965.37 = 17,703.30/x
3. Step 3: Cross multiply
   31,133.70x = 42,965.37 × 17,703.30
4. Step 4: Simplify right side
   31,133.70x = 760,628,834.72
5. Step 5: Solve for x
   x = 760,628,834.72/31,133.70
6. Step 6: Final answer
   x = 24,431.05