Finding the Fourth Proportional to 30,982.86, 42,756.61 and 16,835.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,982.86 : 42,756.61 = 16,835.71 : x
2. Step 2: Convert to fraction form
   30,982.86/42,756.61 = 16,835.71/x
3. Step 3: Cross multiply
   30,982.86x = 42,756.61 × 16,835.71
4. Step 4: Simplify right side
   30,982.86x = 719,837,886.54
5. Step 5: Solve for x
   x = 719,837,886.54/30,982.86
6. Step 6: Final answer
   x = 23,233.42