Finding the Fourth Proportional to 31,020.72, 42,810.81 and 17,593.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,020.72 : 42,810.81 = 17,593.14 : x
2. Step 2: Convert to fraction form
   31,020.72/42,810.81 = 17,593.14/x
3. Step 3: Cross multiply
   31,020.72x = 42,810.81 × 17,593.14
4. Step 4: Simplify right side
   31,020.72x = 753,176,573.84
5. Step 5: Solve for x
   x = 753,176,573.84/31,020.72
6. Step 6: Final answer
   x = 24,279.79