Finding the Fourth Proportional to 30,939.42, 42,696.39 and 17,510.43

Step by Step Solution

1. Step 1: Write the proportion equation
   30,939.42 : 42,696.39 = 17,510.43 : x
2. Step 2: Convert to fraction form
   30,939.42/42,696.39 = 17,510.43/x
3. Step 3: Cross multiply
   30,939.42x = 42,696.39 × 17,510.43
4. Step 4: Simplify right side
   30,939.42x = 747,632,148.35
5. Step 5: Solve for x
   x = 747,632,148.35/30,939.42
6. Step 6: Final answer
   x = 24,164.39