Finding the Fourth Proportional to 30,871.16, 42,601.61 and 17,259.14

Step by Step Solution

1. Step 1: Write the proportion equation
   30,871.16 : 42,601.61 = 17,259.14 : x
2. Step 2: Convert to fraction form
   30,871.16/42,601.61 = 17,259.14/x
3. Step 3: Cross multiply
   30,871.16x = 42,601.61 × 17,259.14
4. Step 4: Simplify right side
   30,871.16x = 735,267,300.87
5. Step 5: Solve for x
   x = 735,267,300.87/30,871.16
6. Step 6: Final answer
   x = 23,817.29