Finding the Fourth Proportional to 30,938.86, 42,693.69 and 17,512.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,938.86 : 42,693.69 = 17,512.84 : x
2. Step 2: Convert to fraction form
   30,938.86/42,693.69 = 17,512.84/x
3. Step 3: Cross multiply
   30,938.86x = 42,693.69 × 17,512.84
4. Step 4: Simplify right side
   30,938.86x = 747,687,761.98
5. Step 5: Solve for x
   x = 747,687,761.98/30,938.86
6. Step 6: Final answer
   x = 24,166.62