Finding the Fourth Proportional to 30,700.57, 42,369.24 and 17,271.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,700.57 : 42,369.24 = 17,271.02 : x
2. Step 2: Convert to fraction form
   30,700.57/42,369.24 = 17,271.02/x
3. Step 3: Cross multiply
   30,700.57x = 42,369.24 × 17,271.02
4. Step 4: Simplify right side
   30,700.57x = 731,760,097.35
5. Step 5: Solve for x
   x = 731,760,097.35/30,700.57
6. Step 6: Final answer
   x = 23,835.39